Who can tell me the usage of Does, Do, have and has in senior one English?

Does, do and do are all auxiliary verbs used in the present continuous tense.

The difference is that Do is used in the first person or other person plural I, we, they, you and so on. This has two meanings:

1. drying; Do (something); What can I do for you? what can I do for you?

2. Form negative sentences and interrogative sentences. I don't know. I don't know. Do you like dogs? Do you like dogs?

Does is used in the third person singular with the same meaning as above.

Have and have are both verbs.

Have is used in the first person or other person plural I, we, they, you, etc. , which means:

1. Yes

2. Eat, drink, continue, endure and make.

Has is used in the third person singular.