Use of that in English

 The word that can be used in different ways in English. Here are some of the main uses:

- That can be used as a determiner to point to something or someone that is far from the speaker or not visible. For example, "That car is mine." or "That woman over there is my sister."

- That can be used as a relative pronoun to introduce a clause that gives more information about a noun. For example, "The book that I bought yesterday is very interesting." or "She is the person that helped me."

- That can be used as a conjunction to introduce a clause that acts as the object, subject, or complement of another clause. For example, "I think that you are right." or "The fact that he lied is shocking." or "He is happy that you came."