助動詞或be動詞開頭的是什麼句

助動詞總共5個，do，be，have，shall，will。如果這些助動詞開頭，那就是一般疑問句。

例句

Do you swim every weekend?

Have you finished doing your homework?

Is he learning English now?

Will you go to school tomorrow?

Shall I go with you?

另外 be 動詞還是個 連繫動詞。若在句首，也是一般疑問句。

Are you a teacher?