Conjugação do verbo inglês
MUST UNBUTTON

Verbo regular: unbutton - unbuttoned - unbuttoned

Afirmação

Forma simple	Forma com V-ing
I must unbutton you must unbutton he must unbutton we must unbutton you must unbutton they must unbutton	I must be unbuttoning you must be unbuttoning he must be unbuttoning we must be unbuttoning you must be unbuttoning they must be unbuttoning
Perfeito	Perfeito com V-ing
I must have unbuttoned you must have unbuttoned he must have unbuttoned we must have unbuttoned you must have unbuttoned they must have unbuttoned	I must have been unbuttoning you must have been unbuttoning he must have been unbuttoning we must have been unbuttoning you must have been unbuttoning they must have been unbuttoning

Negação

Forma simple	Forma com V-ing
I mustn't unbutton you mustn't unbutton he mustn't unbutton we mustn't unbutton you mustn't unbutton they mustn't unbutton	I mustn't be unbuttoning you mustn't be unbuttoning he mustn't be unbuttoning we mustn't be unbuttoning you mustn't be unbuttoning they mustn't be unbuttoning
Perfeito	Perfeito com V-ing
I mustn't have unbuttoned you mustn't have unbuttoned he mustn't have unbuttoned we mustn't have unbuttoned you mustn't have unbuttoned they mustn't have unbuttoned	I mustn't have been unbuttoning you mustn't have been unbuttoning he mustn't have been unbuttoning we mustn't have been unbuttoning you mustn't have been unbuttoning they mustn't have been unbuttoning

Forma interrogativa

Forma simple	Forma com V-ing
must I unbutton? must you unbutton? must he unbutton? must we unbutton? must you unbutton? must they unbutton?	must I be unbuttoning? must you be unbuttoning? must he be unbuttoning? must we be unbuttoning? must you be unbuttoning? must they be unbuttoning?
Perfeito	Perfeito com V-ing
must I have unbuttoned? must you have unbuttoned? must he have unbuttoned? must we have unbuttoned? must you have unbuttoned? must they have unbuttoned?	must I have been unbuttoning? must you have been unbuttoning? must he have been unbuttoning? must we have been unbuttoning? must you have been unbuttoning? must they have been unbuttoning?

Forma interro-Negação

Forma simple	Forma com V-ing
mustn't I unbutton? mustn't you unbutton? mustn't he unbutton? mustn't we unbutton? mustn't you unbutton? mustn't they unbutton?	mustn't I be unbuttoning? mustn't you be unbuttoning? mustn't he be unbuttoning? mustn't we be unbuttoning? mustn't you be unbuttoning? mustn't they be unbuttoning?
Perfeito	Perfeito com V-ing
mustn't I have unbuttoned? mustn't you have unbuttoned? mustn't he have unbuttoned? mustn't we have unbuttoned? mustn't you have unbuttoned? mustn't they have unbuttoned?	mustn't I have been unbuttoning? mustn't you have been unbuttoning? mustn't he have been unbuttoning? mustn't we have been unbuttoning? mustn't you have been unbuttoning? mustn't they have been unbuttoning?