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 must not unbutton you must not unbutton he must not unbutton we must not unbutton you must not unbutton they must not unbutton	I must not be unbuttoning you must not be unbuttoning he must not be unbuttoning we must not be unbuttoning you must not be unbuttoning they must not be unbuttoning
Perfeito	Perfeito com V-ing
I must not have unbuttoned you must not have unbuttoned he must not have unbuttoned we must not have unbuttoned you must not have unbuttoned they must not have unbuttoned	I must not have been unbuttoning you must not have been unbuttoning he must not have been unbuttoning we must not have been unbuttoning you must not have been unbuttoning they must not 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
must I not unbutton? must you not unbutton? must he not unbutton? must we not unbutton? must you not unbutton? must they not unbutton?	must I not be unbuttoning? must you not be unbuttoning? must he not be unbuttoning? must we not be unbuttoning? must you not be unbuttoning? must they not be unbuttoning?
Perfeito	Perfeito com V-ing
must I not have unbuttoned? must you not have unbuttoned? must he not have unbuttoned? must we not have unbuttoned? must you not have unbuttoned? must they not have unbuttoned?	must I not have been unbuttoning? must you not have been unbuttoning? must he not have been unbuttoning? must we not have been unbuttoning? must you not have been unbuttoning? must they not have been unbuttoning?