Is there an easy way to explain to my students when they should use the verb 'do' when asking a question? They seem to be able to get most of the question right, but forget that verb. Are there specific verbs that 'do' goes with in a question? For example, I know it usually goes with 'have'. Do you have to go?
I tell my students that, basically, every time they formulate a question in English, they have to use an auxiliary (except when "who" or "what" are the subject of the question), the pattern being
(Int. word) - Auxiliary - S - V (- complements) ?
If there's no auxiliary in the verbal form they use, then "do", "does" or 'did" must fill the auxiliary slot, the main verb being then