The Past Tense of Become: Became vs. Become, One Vowel Apart

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The Past Tense of Become: Became vs. Become, One Vowel Apart
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You're doing dictation practice on someone recounting their career path. The speaker drops a sentence, you write down "He came a manager last year," then read it back and see the sentence is missing a whole piece. The real sentence is "He became a manager last year." Quick answer first: the simple past of become is became, while the past participle goes back to become. The V-ing form is becoming, the third person singular is becomes.

Become is tricky in two places that a verb conjugation table doesn't touch. First, V3 is identical to V1. Looking at the word become in a sentence, you can't tell whether it's the infinitive or the participle without looking at what comes before it, and that's why "he has became" is one of the most persistent writing errors among learners. Second, the two forms became and become differ by exactly one vowel in the second syllable, while the first syllable gets swallowed almost entirely in real speech, so your ear has to catch exactly one sound to tell the two tenses apart.

This article runs through the whole chain: the form table for become, the group of verbs whose V1 matches V3, of which become is a member because it's really come with a prefix attached, when to use became and when to use become, the boundary between become and get, turn and go — which Vietnamese lumps together into one word, trở nên — the set of fixed phrases that go with become, and the part that matters most for listening practice: how these two forms sound at normal speaking speed.

The form table for become, and why it conjugates just like come

Five forms, fit into one table. The phonetic column follows American pronunciation; the British accent for this word is almost no different.

FormWordPhoneticShort example
Infinitive (V1)become/bɪˈkʌm/Things become clear later.
Third person singularbecomes/bɪˈkʌmz/It becomes easier.
Simple past (V2)became/bɪˈkeɪm/She became a nurse.
Past participle (V3)become/bɪˈkʌm/It has become normal.
Present participlebecoming/bɪˈkʌmɪŋ/He is becoming impatient.

The first row and the fourth row are identical. That's not a printing error. Become belongs to a very small group where V1 and V3 share the same word while V2 changes the vowel. This group has only a few members: come and came, run and ran, become and became, overcome and overcame.

Looking at the list above, the reason becomes clear right away: become is literally come with the prefix be attached. It isn't a separate verb you need to learn separately — it's an existing verb plus two letters at the front, so it inherits the entire conjugation pattern of come. Come becomes came, so become becomes became. Come stays the same at V3, so become stays the same too. Overcome follows exactly the same pattern.

This has a very convenient consequence: if you've already got a handle on come, you don't need to learn anything extra for become — just remember that the prefix be doesn't change. Conversely, if you tend to make mistakes with come, that same error will automatically repeat itself in become, and fixing it in one place fixes it in both.

One more detail about the spelling: the letter o in become is pronounced /ʌ/, the sound made in the middle of the mouth, not /oʊ/ as in home or stone. This is also something become inherits from come. If you set this vowel wrong, both became and become will slip, because you'll be reaching for a sound that isn't there.

Finally, the stress falls on the second syllable: beCOME, beCAME. The first syllable carries no stress, so it shrinks down to a very short sound, and in fast speech it nearly disappears. This matters enough that an entire section further down is devoted to it.

A few other verbs worth looking at for comparison: the past tense of come is the root of become itself, so reading that article gets you halfway through this one; the past tense of run is the other member of the V1-equals-V3 group and also changes its vowel at V2; the past tense of get explains why native speakers so often use get instead of become in everyday speech; and the past tense of grow is a verb that suggests a slow process — set next to become, the boundary in meaning becomes very clear. To see the whole system, open the article on English grammar and work from there.

When to use became, when to use become

The simplest rule: became stands alone, become only stands after an auxiliary verb or in the infinitive form. Became is the simple past — it acts as the main verb of the sentence by itself. Become in its participle role always needs have, has, or had in front of it, and in its infinitive role it follows will, can, may, to, or did.

SentenceCorrect or wrongWhy
She became a nurse in 2018.CorrectSimple past, clear time marker
She has became a nurse.WrongAfter has must come the participle become
It has become a habit.CorrectParticiple follows has, result carries into the present
Did he became the lead?WrongAfter did comes the infinitive become
He became to like the job.Wrongbecome doesn't take to V; this spot needs came to like
The room became very quiet.Correctbecome is a linking verb, followed by an adjective

The fifth row is worth pausing on because it's a mistake learners produce very naturally. Become is a linking verb; after it comes a noun or an adjective, never another verb. To say gradually coming to like something, English uses "came to like" or "grew to like," not became.

The next source of confusion is meaning. Vietnamese lumps become, get, turn, go, and grow together into one word, trở nên, while English picks the word depending on what's changing and how formal the tone is. Look at the six sentence pairs below to see the boundary more clearly.

Sentence pairWhere the difference lies
He became a teacher. / He got a job as a teacher.become goes directly with an occupation. get goes with job, not with the occupation itself
She became angry. / She got angry.Same meaning; got angry is more casual and more common in speech
The milk went bad. / The milk became bad.For spoiled food, use go. The second sentence sounds very odd to a native speaker
The leaves turned red. / The leaves became red.For a color change, use turn. become sounds stiff and bookish
He became interested. / He grew interested.grow suggests a slow, gradual process. become is neutral about speed
What became of him? / What happened to him?become of is a fixed phrase, asking about someone's or something's eventual fate

One more detail that often gets overlooked: become leans toward written language and toward big, lasting changes. In everyday conversation, native speakers say get far more often: get tired, get better, get used to it. The sentence "I became tired" isn't wrong, but it sounds like you're reading out a report. Choose become when it's a real turning point; choose get when it's an everyday matter.

Hearing became and become in real speech

This is the part you won't find in any verb conjugation table, and it's also the part that determines whether you can actually hear the tense of a sentence. On paper, became and become differ by three letters. In sound, they differ by exactly one vowel, and the rest of the word overlaps completely.

The first syllable carries no stress, so it shrinks down to almost nothing. Both become and became are stressed on the second syllable, so the be at the front is left as a very short sound stuck onto the word before it. "He became" comes out as "hi bkeim." "It has become" comes out as "it hz bkum." In your transcript, the first thing to go missing is always the front of the word, never the end.

Once the be disappears, became sounds a lot like came. This is this word's signature trap. "He became a manager" comes out as "hi bkei-ma manijer," and if the /b/ sound is too light, your ear will only catch "came a manager." The transcribed sentence still reads fine — it's just missing the meaning of becoming.

Same mechanism, and become sounds a lot like come. "She has become quiet" comes out as "shiz bkum kwaiet" and is very easy to mishear as "she has come quiet," a sentence that makes no sense. For beginners, this is a hard error to catch on your own, because both words are already familiar.

The entire difference between became and become sits in one vowel. The /eɪ/ in became is a diphthong, long and gliding upward. The /ʌ/ in become is a short vowel, sitting still in the middle of the mouth. There's no other clue in the word, because the initial and final consonants match completely.

has and have before become are nearly invisible. "They have become" in real speech is "they've become," and the contracted part is just a /v/ sound stuck onto the end of the subject. Missing that sound means writing down "they become," a sentence with the wrong tense that your ear finds perfectly reasonable.

The /m/ sound at the end always links to the next word. "became a," "become a," "became an issue" all merge into one block: "bkei-ma," "bkuh-ma," "bkei-ma-nishu." To the eye there's a space; to the ear there isn't, and learners who split words the way their eyes do lose the thread right at this spot.

The three things sit side by side in the table below: the original sentence, how it sounds at natural speed, and the common transcription error. The middle column is for what the ear catches, not for standard phonetic transcription.

Real sentenceSounds likeLearners often write
He became a manager last year.hi bkei-ma manijer las yirHe came a manager last year.
It became clear pretty fast.it bkeim klir priti fastIt came clear pretty fast.
She has become much quieter.shiz bkum much kwaieterShe become much quieter.
They became friends after that trip.they bkeim frendz after that tripThey become friends after that trip.
What became of that idea?wot bkeim ov that aidiaWhat came of that idea?
He had become quite good at it.hi hd bkum kwait gud at itHe had came quite good at it.

Look at the third column and you'll see three very different kinds of errors sitting next to each other. The first is losing the first syllable, became turning into came, and it's an ear error, not a grammar error. The second is mishearing the auxiliary verb, has become turning into become, and it strips the sentence of its tense. The third is picking the wrong form between the two, had become turning into had came, and it tells you that you caught the word but haven't yet locked down which form follows had. Three types need three different fixes, and knowing which one you're making is half the battle.

Illustration of an unstressed first syllable fading out on a sound wave, leaving only the stressed syllable
The first syllable of became is the part that disappears first, and losing it makes became sound like came.

That chain shows up very clearly in a dictation session on WELE. You write down exactly what you just heard, the scoring points straight at the mismatched word, and your "came" appears right next to the original's "became." What you learn isn't that you're short on vocabulary — it's that your ear is skipping over unstressed syllables at the start of words.

You go back to exactly the sentences with became and become, listen slowly to the part before the verb rather than the part after, and practice picking out that very short /b/ sound stuck to the previous word. This is a reusable skill for a whole batch of other words built the same way — believe, before, begin, behind, because — all of which open with a swallowed syllable. Memory forms at the moment you see exactly where you transcribed something wrong, not while rereading a five-line table.

The article on connected speech explains the mechanism behind swallowed sounds and linking across a whole sentence — in other words, why these sounds vanish rather than you having poor listening skills. To apply it straight to real sentences, open the podcast library; each episode has a transcript to check against after you've written it down.

Common phrases with became and become

Become has almost no phrasal verbs, unlike come, which spawns a whole set of them. To make up for it, it comes with a very fixed list of adjectives and nouns, and that's what you actually run into in podcasts and reading passages. So the table below is a collocation table, not a phrasal-verb table, and everything is already written in the past or participle form so you get used to seeing it that way.

PhraseMeaningExample
become a teacherTo turn into, used with occupationsShe became a teacher after ten years in sales.
become clearTo become clearIt became clear that nobody had read the brief.
become obviousTo come out into the open, everyone can see itThe gap became obvious in the second week.
become availableTo be ready, opened up for useThe recording became available the next morning.
become popularTo become popularThe format became popular very quickly.
become aware ofTo start to realizeWe became aware of the issue only after launch.
become interested inTo start to find interestingHe became interested in podcasts during lockdown.
become involved inTo get caught up in, take part inShe became involved in the project by accident.
become accustomed toTo gradually get used to, formal toneThey became accustomed to the new schedule.
become known asTo become known by a nameThe area became known as the old quarter.
become friendsTo become friends with each otherThey became friends after that trip.
what became ofWhat happened to that thing afterward, what became of itI still wonder what became of that idea.
become second natureTo become reflexive, done without thinkingChecking the transcript has become second nature.

There's a detail worth noting with become clear and become obvious. Both very often open with the dummy subject it: "it became clear that," "it became obvious that." This is a sentence pattern that shows up thick and fast in narrative podcasts and in analytical writing, and learning the whole pattern is much faster than piecing it together word by word.

Another detail about what became of. This phrase can't be swapped for what happened to in every sentence. What became of someone asks about their long-term fate, usually with a touch of regret or curiosity after many years. What happened to someone asks about a specific event that just occurred. Picking the wrong one isn't a grammar mistake — it just puts your sentence in the wrong stretch of time.

Mistakes Vietnamese learners commonly make with become

Becomed and becamed. Learners get used to treating -ed as a past-tense switch that works for every case, and this error comes from that habit. Become never conjugates by the regular rule, and became doesn't need anything added to it either. There's only became for V2 and become for V3.

Has became, have became, had became. This is the most common mistake on this whole page. After have, has, had, the participle of become is still become — the same as the base form. The correct sentences are "she has become," "they have become," "he had become." If you often make this mistake, check come too, because "I have came" is the exact same error in the exact same spot.

Did you became. Did carries the tense, the verb stays in the base form, and that rule never changes. "Did he become the lead?" is correct. This mistake tends to show up exactly when you're focused on remembering that the past tense of become is became — and remembering it too well.

Pairing become with to V. "He became to like the job" is a sentence Vietnamese speakers write quite naturally, but English has no such form. Become is a linking verb, followed by a noun or an adjective. To say gradually coming to like something, use came to like or grew to like.

Using become where get, turn, or go would be more natural. "The milk became sour" and "the leaves became red" are both grammatically correct but sound very bookish. Native speakers say "went sour" and "turned red." In everyday conversation, get also replaces become in most situations: got tired, got better, got used to it.

Reading the o in become as /oʊ/. This mistake comes from the eye. Become is pronounced /bɪˈkʌm/, with a short vowel in the middle of the mouth, like come, not like home. Also, in the speech of some regions you'll hear native speakers say "he become a manager last year" in the past tense without switching to became — that's a real usage in a few dialects, fine to understand when you hear it, but not to use in writing or in an exam.

Quick exercise

Eight sentences. Fill in become, becomes, became, or becoming. Try to do all of them yourself before checking the answers below.

  1. She ______ a nurse three years after graduating.
  2. Did the problem ______ worse after the update?
  3. It has ______ a habit for the whole team.
  4. The second half ______ much easier once you know the pattern.
  5. He is ______ more confident every week.
  6. They ______ friends during that first project.
  7. By the time we arrived, the room had ______ completely quiet.
  8. I still wonder what ______ of that idea.

Answer key: 1. became. 2. become. 3. become. 4. becomes. 5. becoming. 6. became. 7. become. 8. became.

Sentences 2 and 7 are worth a closer look. Sentence 2 has did before it, so the verb goes back to the base form, even though the whole sentence is about the past, and learners often fill in became here because they're thinking about tense. Sentence 7 has had before it, so it must be the participle become, but become's participle happens to be identical to its base form, so a lot of people fill in became to make it look more past tense — and get it wrong.

Frequently Asked Questions

What is the past tense of become?

The simple past of become is became, while the past participle is become itself. This is exactly the same pattern as come and came, because become is actually come with the prefix be- attached.

Became or become — which one to use?

Check whether there's an auxiliary verb before it. If there's have, has, had, use become. If there's did, will, can, or to, also use become. If there's nothing before it, use became. "He became a lead" is correct, "he has become a lead" is correct, "he has became a lead" is wrong.

Why does become's V3 match its V1?

Because become belongs to a very small group of verbs whose V1 matches V3, along with come, run, and overcome. For become, the reason is quite simple: it's the verb come with the prefix be- attached, so it inherits come's entire conjugation pattern.

How is become different from get?

The meanings are close, but the register is different. become leans toward written language and big, lasting changes. get is more casual and dominates almost all everyday conversation: got tired, got better, got used to it. For professions, become can go straight in, while get needs the word job in between.

Why does became get heard and transcribed as came?

Because the stress in became falls on the second syllable, the first syllable shrinks into a very short sound that sticks to the word before it. When that sound gets too weak, what's left sounds exactly like came. The fix is to practice listening to the part before the verb, not just the stressed part.

How long does it take to learn to hear became in fast speech?

The rule is quick — sit down for one session and you'll remember it. The listening part depends on the listening foundation you already have, and the truest way to measure it is to transcribe a few conversations and see where you're still missing things. The listening level test leaves you a benchmark, and in a few weeks you can use it to compare.

The become form table takes thirty seconds to read, and that's the easiest part of this page. The rest — the V3-matches-V1 thing, and the first syllable getting swallowed to the point where became sounds like came — only really sinks in once you mishear it and see where you transcribed it wrong. Pick a short episode where someone recounts a turning point in their life and try dictation practice on a passage with became or become, then go back to the table at the top of the article and see if it still looks dry to you.

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The Wallaby reads, sorts and writes up what actually helps self-learners: dictation, listening practice and keeping an English habit alive.