When do you start with the verb be and when do you use the auxiliary verb? Why do some sentences use do or does, and sometimes is / are? Is there a verb in a general question, that is, an auxiliary verb? Do you Why not use are you.

I've also met this problem in primary school. I'm always bothered to choose do or be
If the sentence is be (AM / is / are), its interrogative form must be used back to be
For example: Im a student
Are you a student? Not do u a student
If the sentence is predicated by an action verb, the auxiliary verb do must be used to form a question
I like her
do u like her?
If there is a modal verb in the sentence, continue to use it
I can speak
canu speak?

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