I must premise you must premise she must premise we must premise you must premise they must premise
V-ing form
I must be premising you must be premising she must be premising we must be premising you must be premising they must be premising
Perfect
I must have premised you must have premised she must have premised we must have premised you must have premised they must have premised
V-ing perfect
I must have been premising you must have been premising she must have been premising we must have been premising you must have been premising they must have been premising
Negation
Simple form
I must not premise you must not premise she must not premise we must not premise you must not premise they must not premise
V-ing form
I must not be premising you must not be premising she must not be premising we must not be premising you must not be premising they must not be premising
Perfect
I must not have premised you must not have premised she must not have premised we must not have premised you must not have premised they must not have premised
V-ing perfect
I must not have been premising you must not have been premising she must not have been premising we must not have been premising you must not have been premising they must not have been premising
Interrogative form
Simple form
must I premise? must you premise? must she premise? must we premise? must you premise? must they premise?
V-ing form
must I be premising? must you be premising? must she be premising? must we be premising? must you be premising? must they be premising?
Perfect
must I have premised? must you have premised? must she have premised? must we have premised? must you have premised? must they have premised?
V-ing perfect
must I have been premising? must you have been premising? must she have been premising? must we have been premising? must you have been premising? must they have been premising?
Interro-negative form
Simple form
must I not premise? must you not premise? must she not premise? must we not premise? must you not premise? must they not premise?
V-ing form
must I not be premising? must you not be premising? must she not be premising? must we not be premising? must you not be premising? must they not be premising?
Perfect
must I not have premised? must you not have premised? must she not have premised? must we not have premised? must you not have premised? must they not have premised?
V-ing perfect
must I not have been premising? must you not have been premising? must she not have been premising? must we not have been premising? must you not have been premising? must they not have been premising?