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 mustn't premise you mustn't premise she mustn't premise we mustn't premise you mustn't premise they mustn't premise
V-ing form
I mustn't be premising you mustn't be premising she mustn't be premising we mustn't be premising you mustn't be premising they mustn't be premising
Perfect
I mustn't have premised you mustn't have premised she mustn't have premised we mustn't have premised you mustn't have premised they mustn't have premised
V-ing perfect
I mustn't have been premising you mustn't have been premising she mustn't have been premising we mustn't have been premising you mustn't have been premising they mustn't 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
mustn't I premise? mustn't you premise? mustn't she premise? mustn't we premise? mustn't you premise? mustn't they premise?
V-ing form
mustn't I be premising? mustn't you be premising? mustn't she be premising? mustn't we be premising? mustn't you be premising? mustn't they be premising?
Perfect
mustn't I have premised? mustn't you have premised? mustn't she have premised? mustn't we have premised? mustn't you have premised? mustn't they have premised?
V-ing perfect
mustn't I have been premising? mustn't you have been premising? mustn't she have been premising? mustn't we have been premising? mustn't you have been premising? mustn't they have been premising?