How do you use their, there, and they’re?

These three words serve many functions.

When to use their

Their is the possessive case of the pronoun they, meaning belonging to them. As in:

They left their cell phones at home. Their is generally plural, but it is increasingly accepted in place of the singular his or her after words such as someone:

Someone left their book on the table.

When to use there

There is an adverb that means in or at that place. In this sense, there is essentially the opposite of here. This is what’s known as an adverb of place, which answers the question where an action is taking place. Many common adverbs end in -ly, like quickly, usually, and completely, but not all adverbs do.

She is there now. There is also used as a pronoun introducing the subject of a sentence or clause:

There is still hope.

When to use they’re

They’re is a contraction of the words they and are.

They’re mastering the differences between three homophones