I must act you must act she must act we must act you must act they must act
Forma com V-ing
I must be acting you must be acting she must be acting we must be acting you must be acting they must be acting
Perfeito
I must have acted you must have acted she must have acted we must have acted you must have acted they must have acted
Perfeito com V-ing
I must have been acting you must have been acting she must have been acting we must have been acting you must have been acting they must have been acting
Negação
Forma simple
I mustn't act you mustn't act she mustn't act we mustn't act you mustn't act they mustn't act
Forma com V-ing
I mustn't be acting you mustn't be acting she mustn't be acting we mustn't be acting you mustn't be acting they mustn't be acting
Perfeito
I mustn't have acted you mustn't have acted she mustn't have acted we mustn't have acted you mustn't have acted they mustn't have acted
Perfeito com V-ing
I mustn't have been acting you mustn't have been acting she mustn't have been acting we mustn't have been acting you mustn't have been acting they mustn't have been acting
Forma interrogativa
Forma simple
must I act? must you act? must she act? must we act? must you act? must they act?
Forma com V-ing
must I be acting? must you be acting? must she be acting? must we be acting? must you be acting? must they be acting?
Perfeito
must I have acted? must you have acted? must she have acted? must we have acted? must you have acted? must they have acted?
Perfeito com V-ing
must I have been acting? must you have been acting? must she have been acting? must we have been acting? must you have been acting? must they have been acting?
Forma interro-Negação
Forma simple
mustn't I act? mustn't you act? mustn't she act? mustn't we act? mustn't you act? mustn't they act?
Forma com V-ing
mustn't I be acting? mustn't you be acting? mustn't she be acting? mustn't we be acting? mustn't you be acting? mustn't they be acting?
Perfeito
mustn't I have acted? mustn't you have acted? mustn't she have acted? mustn't we have acted? mustn't you have acted? mustn't they have acted?
Perfeito com V-ing
mustn't I have been acting? mustn't you have been acting? mustn't she have been acting? mustn't we have been acting? mustn't you have been acting? mustn't they have been acting?