masculino | Modal : não | may | might | can | could | shall | should | will | would | must | ought to
Conjugação do verbo inglês MUST BACK
Verbo regular: back - backed - backed
Afirmação
Forma simple
I must backyou must back
she must back
we must back
you must back
they must back
Forma com V-ing
I must be backingyou must be backing
she must be backing
we must be backing
you must be backing
they must be backing
Perfeito
I must have backedyou must have backed
she must have backed
we must have backed
you must have backed
they must have backed
Perfeito com V-ing
I must have been backingyou must have been backing
she must have been backing
we must have been backing
you must have been backing
they must have been backing
Negação
Forma simple
I mustn't backyou mustn't back
she mustn't back
we mustn't back
you mustn't back
they mustn't back
Forma com V-ing
I mustn't be backingyou mustn't be backing
she mustn't be backing
we mustn't be backing
you mustn't be backing
they mustn't be backing
Perfeito
I mustn't have backedyou mustn't have backed
she mustn't have backed
we mustn't have backed
you mustn't have backed
they mustn't have backed
Perfeito com V-ing
I mustn't have been backingyou mustn't have been backing
she mustn't have been backing
we mustn't have been backing
you mustn't have been backing
they mustn't have been backing
Forma interrogativa
Forma simple
must I back?must you back?
must she back?
must we back?
must you back?
must they back?
Forma com V-ing
must I be backing?must you be backing?
must she be backing?
must we be backing?
must you be backing?
must they be backing?
Perfeito
must I have backed?must you have backed?
must she have backed?
must we have backed?
must you have backed?
must they have backed?
Perfeito com V-ing
must I have been backing?must you have been backing?
must she have been backing?
must we have been backing?
must you have been backing?
must they have been backing?
Forma interro-Negação
Forma simple
mustn't I back?mustn't you back?
mustn't she back?
mustn't we back?
mustn't you back?
mustn't they back?
Forma com V-ing
mustn't I be backing?mustn't you be backing?
mustn't she be backing?
mustn't we be backing?
mustn't you be backing?
mustn't they be backing?
Perfeito
mustn't I have backed?mustn't you have backed?
mustn't she have backed?
mustn't we have backed?
mustn't you have backed?
mustn't they have backed?
Perfeito com V-ing
mustn't I have been backing?mustn't you have been backing?
mustn't she have been backing?
mustn't we have been backing?
mustn't you have been backing?
mustn't they have been backing?