How do you use haven't or hasen't?

Answer 1

"Haven't" is the contraction of "have not" and is used with plural subjects or with "I" and "you." For example, "I haven't finished my homework" or "They haven't seen the movie." "Hasn't," on the other hand, is the contraction of "has not" and is used with singular third-person subjects, like "he," "she," or "it." For example, "She hasn't called me yet."