I've read many grammar textbooks and all of them are curiously silent on Questions Tags for the below sentences.
Can any kind native speaker of English fill in the correct Questions Tags? Thank you very much.
They must get up at 5 am every day, _______ they? (The opposite should be needn't they but is it the correct question tag here?)
It must have been terrible, ___________ it?
He may like it, ___________ he?
He may speak with the Queen (he's allowed to), ___________ he?
He ought to tell them the truth, ______________ he?
Thanks a lot for the answer! I know the sentences aren't particularly common. I was asking purely academically (to complete my knowledge of the Question Tag "theory").
I noticed you completely avoided may.
Is there not a sentence where may might appear with a question tag? And would it be mayn't?
For example: "He may be our enemy now, mayn't he?"
I know it sounds strange, but is it grammatically correct?