Attention, ce verbe peut ne pas exister, la conjugaison est donnée à titre d'exemple.
Affirmation
Forme simple
I must stay up you must stay up she must stay up we must stay up you must stay up they must stay up
Forme en V-ing
I must be stay uping you must be stay uping she must be stay uping we must be stay uping you must be stay uping they must be stay uping
Perfect
I must have stay uped you must have stay uped she must have stay uped we must have stay uped you must have stay uped they must have stay uped
Perfect en V-ing
I must have been stay uping you must have been stay uping she must have been stay uping we must have been stay uping you must have been stay uping they must have been stay uping
Négation
Forme simple
I mustn't stay up you mustn't stay up she mustn't stay up we mustn't stay up you mustn't stay up they mustn't stay up
Forme en V-ing
I mustn't be stay uping you mustn't be stay uping she mustn't be stay uping we mustn't be stay uping you mustn't be stay uping they mustn't be stay uping
Perfect
I mustn't have stay uped you mustn't have stay uped she mustn't have stay uped we mustn't have stay uped you mustn't have stay uped they mustn't have stay uped
Perfect en V-ing
I mustn't have been stay uping you mustn't have been stay uping she mustn't have been stay uping we mustn't have been stay uping you mustn't have been stay uping they mustn't have been stay uping
Forme interrogative
Forme simple
must I stay up? must you stay up? must she stay up? must we stay up? must you stay up? must they stay up?
Forme en V-ing
must I be stay uping? must you be stay uping? must she be stay uping? must we be stay uping? must you be stay uping? must they be stay uping?
Perfect
must I have stay uped? must you have stay uped? must she have stay uped? must we have stay uped? must you have stay uped? must they have stay uped?
Perfect en V-ing
must I have been stay uping? must you have been stay uping? must she have been stay uping? must we have been stay uping? must you have been stay uping? must they have been stay uping?
Forme interro-négative
Forme simple
mustn't I stay up? mustn't you stay up? mustn't she stay up? mustn't we stay up? mustn't you stay up? mustn't they stay up?
Forme en V-ing
mustn't I be stay uping? mustn't you be stay uping? mustn't she be stay uping? mustn't we be stay uping? mustn't you be stay uping? mustn't they be stay uping?
Perfect
mustn't I have stay uped? mustn't you have stay uped? mustn't she have stay uped? mustn't we have stay uped? mustn't you have stay uped? mustn't they have stay uped?
Perfect en V-ing
mustn't I have been stay uping? mustn't you have been stay uping? mustn't she have been stay uping? mustn't we have been stay uping? mustn't you have been stay uping? mustn't they have been stay uping?