Their vs There vs They're
Their shows possession (their car). There points to a place or introduces existence (over there, there is). They're is short for 'they are'.
The one-line answer
Their shows possession (their car). There points to a place or introduces existence (over there, there is). They're is short for 'they are'.
their
determinerbelonging to them — always followed by a noun
- The students handed in their homework.
- Their house is at the end of the street.
- They forgot their passports.
there
adverbin or at that place; also used in 'there is/are' to say something exists
- Your keys are over there on the table.
- There is a problem with the booking.
- We went there last summer.
they're
contractionshort for 'they are' — always expandable to 'they are'
- They're waiting for us at the station.
- I think they're right about the price.
- They're moving to a bigger office next month.
Memory trick
Expand the apostrophe: if 'they are' fits, write they're. If it points to a place, 'there' contains 'here'. Everything else showing ownership is 'their'.
Their vs There vs They're: Test yourself
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