There and Their and They're.
Another easy one to sort out.
Their is the possessive form indicating belonging to them. You should only use this when you are indicating possession to a group. Look at the examples below.
The children all ate their sandwiches.
The soldiers polished their rifles.
The Greek people are justifiably proud of their beautiful country.
The passengers complained that the airline had lost their luggage.
There is the place, i.e. not here.
It is also used when saying 'there is' and 'there are'.
Put those books over there please.
I found the old shoes in there.
There are thousands of stars visible from Earth.
There is soot all over the new carpet.
They're is the contracted form of "they are". Remember that abbreviations like this should not be used in essays and other formal writing. They are fine in reported speech.
'They're all going to the cinema this evening,' said Paul's mum.
'I can't see where they're coming from!' he yelled.
'They're waiting for you in the interview room.'
'Do you know where they're going to be this afternoon?'
Test your understanding of there, their and they're with this exercise.