The Grammar Guide: Their, They're, and There.

The difference between their, they're, and there is very simple. Still, you wouldn't believe how often people mess this up! So I hope that this helps everyone understand how to use the three forms the way they're supposed to be used! Comment any questions!  

Their is used when you're talking about possession. 

eg:

I went to their house for a pool party. 

I love to play with their dog.

They're is the easiest. Just think of it as "they are". 

eg:

They're going to the beach tomorrow. 

They're going to have the report done by Wednesday. 

There is used when you're talking about a location... 

eg:

Shelly's glasses are over there. 

Dan likes to go there. 

OR when their and they're can't work.

eg:

There isn't any more sugar.