Hogy van a 'must' és 'must not' question tag-je?

Hm, érdekes, a "must" "question tag'-je valahogy kimaradt az életemből... és nem is hiányzott eddig. :)

Ezt találtam:

Auxiliary must

We must be at home at 8 pm, mustn't we?

Yes, we must. / No, we needn't.

ill. ezt:

"Must" forms tag questions with both itself and with have to. Also, where "must" means obligation, tag questions can be formed with both should and ought.

I must (do s/t), mustn't I?

I must (do s/t), shouldn't I?

I mustn't (do s/t), must I?

I mustn't (do s/t), should I?

I mustn't (do s/t), ought I?

I have to (do s/t), mustn't I? - For "don't have to" the tag question is formed with do, see below.

Nem tudom, tudod-e használni valamire.