I must stem you must stem he must stem we must stem you must stem they must stem
Forma com V-ing
I must be stemming you must be stemming he must be stemming we must be stemming you must be stemming they must be stemming
Perfeito
I must have stemmed you must have stemmed he must have stemmed we must have stemmed you must have stemmed they must have stemmed
Perfeito com V-ing
I must have been stemming you must have been stemming he must have been stemming we must have been stemming you must have been stemming they must have been stemming
Negação
Forma simple
I mustn't stem you mustn't stem he mustn't stem we mustn't stem you mustn't stem they mustn't stem
Forma com V-ing
I mustn't be stemming you mustn't be stemming he mustn't be stemming we mustn't be stemming you mustn't be stemming they mustn't be stemming
Perfeito
I mustn't have stemmed you mustn't have stemmed he mustn't have stemmed we mustn't have stemmed you mustn't have stemmed they mustn't have stemmed
Perfeito com V-ing
I mustn't have been stemming you mustn't have been stemming he mustn't have been stemming we mustn't have been stemming you mustn't have been stemming they mustn't have been stemming
Forma interrogativa
Forma simple
must I stem? must you stem? must he stem? must we stem? must you stem? must they stem?
Forma com V-ing
must I be stemming? must you be stemming? must he be stemming? must we be stemming? must you be stemming? must they be stemming?
Perfeito
must I have stemmed? must you have stemmed? must he have stemmed? must we have stemmed? must you have stemmed? must they have stemmed?
Perfeito com V-ing
must I have been stemming? must you have been stemming? must he have been stemming? must we have been stemming? must you have been stemming? must they have been stemming?
Forma interro-Negação
Forma simple
mustn't I stem? mustn't you stem? mustn't he stem? mustn't we stem? mustn't you stem? mustn't they stem?
Forma com V-ing
mustn't I be stemming? mustn't you be stemming? mustn't he be stemming? mustn't we be stemming? mustn't you be stemming? mustn't they be stemming?
Perfeito
mustn't I have stemmed? mustn't you have stemmed? mustn't he have stemmed? mustn't we have stemmed? mustn't you have stemmed? mustn't they have stemmed?
Perfeito com V-ing
mustn't I have been stemming? mustn't you have been stemming? mustn't he have been stemming? mustn't we have been stemming? mustn't you have been stemming? mustn't they have been stemming?