which place "has" and "have" used?

There are some points to remember when to use ' has' and 'have' :- They can both be used to show possession and are important in making the perfect tenses. 'HAD' is the past form of both ' has and have'. # HAVE:- have is used with some pronoun and plural noun ( I, we, they, you..) 1) I have a great English teacher. 2) You have toothpaste on your chin. 3) We have a meeting at 12. 4) Nurses have a difficult job. # HAS :- ' has ' is used with third person singular (he, she,it). For example:- 1) She has a great personality. 2) He has a new friend. 3) It has a hole near the door.. # 'HAS, HAVE' IN QUESTIONS :- 1) Have you ever been to Australia? 2) Has he left yet? 3) Who has my pen? 4) Has anyone seen my mobile phone? HOPE NOW YOU GET UNDERSTAND...if it helps you so plz give an up vote to my answer..

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tense is present perfect nouns are singular has plural have