Meaning & use
happen
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Meanings
verbintransitive
To take place or occur, especially without being planned.
Grammar: No object; often used with what, something, anything, or an event as subject: What happened?
Patterns
- something happens
- what happened?
- something happens to someone
The accident happened at the intersection of Main and Oak streets.
What happened to your car? It looks damaged.
Nobody knows exactly what happened that night.
verbintransitive
To do or find something by chance.
Grammar: Followed by to + infinitive: I happened to see her.
Patterns
- happen to do something
- happen to be
- happen to know
I happened to see her at the store yesterday.
Do you happen to know where the station is?
He happened to be in Paris when the exhibition opened.
verbintransitive
To come or go somewhere by chance.
Grammar: Often followed by a preposition like on, upon, or by: happen on a discovery.
Patterns
- happen on something
- happen upon someone
- happen by
She happened on a small café hidden behind the market.
We happened upon an old friend while walking in the park.
He happened by the office just as we were leaving.
Word forms
| third person singular | happens |
|---|---|
| past tense | happened |
| past participle | happened |
| -ing form | happening |
Common combinations
- happen to someone
- What happened to your brother after the game?
- happen again
- I hope that mistake doesn't happen again.
- happen overnight
- Success like that doesn't happen overnight.
- happen by chance
- The meeting happened by chance, not by plan.
- happen to know
- Do you happen to know her name?
Synonyms and how they differ
- occur
- More formal than happen; often used in writing about events or phenomena.
- take place
- Suggests a planned or arranged event; happen is more general and often unplanned.
- come about
- Focuses on how something develops over time; happen is more direct.
Word family
- happening noun
- An event or occurrence, often one that is unusual or interesting.
- happenstance noun
- Coincidence or chance, especially a fortunate one.
- haphazard adjective
- Disorganized or random; not planned.
Commonly confused: happen or happen to? happen or occur?
happen vs happen to
As a phrase, 'happen to' can mean 'do by chance' (I happened to see her). It does not mean 'occur to' (it occurred to me that...).
happen vs occur
Occur is more formal and often used for natural events or thoughts coming to mind. Happen is more common in everyday speech.
Practice
Choose the correct sentence.
Choose one answer.
The correct pattern is 'happen to + base verb' (happened to see). The other options use incorrect verb forms or prepositions.
Make it your own
Write a sentence using “happen”, then check it and compare it with the examples above.