Change to a general question 【1】The boys are playing football in the park. 【2】 Mr.Zhang is my teacher. And the following is changed into a negative sentence 【3】There are some watches on the table.

Change to a general question 【1】The boys are playing football in the park. 【2】 Mr.Zhang is my teacher. And the following is changed into a negative sentence 【3】There are some watches on the table.

(1):Are the boys playing football in the park
(2):Is Mr.Zhang your teacher
When changing a general question, the auxiliary verb and the subject exchange positions
(3):There aren't any watches on the table.
When changing negative sentences, add not after the verb be, while some is used in affirmative sentences and when asking for answers, and any is used in negative sentences, so replace some with any