
there/their/they're
'There' can act as different parts of speech, depending on how it is used in a sentence. Most commonly, it is used as a pronoun or adverb. It is mostly used before auxiliary verbs such as are, were, was, will, shall, should, would, might, may, could etc.
There will be a lot to eat at the party tonight. (pronoun)
Put the book over there. (adverb)
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