masculino | Modal : não | may | might | can | could | shall | should | will | would | must | ought to
Conjugação do verbo inglês MUST BACKCROSS
Verbo regular: backcross - backcrossed - backcrossed
Afirmação
Forma simple
I must backcrossyou must backcross
she must backcross
we must backcross
you must backcross
they must backcross
Forma com V-ing
I must be backcrossingyou must be backcrossing
she must be backcrossing
we must be backcrossing
you must be backcrossing
they must be backcrossing
Perfeito
I must have backcrossedyou must have backcrossed
she must have backcrossed
we must have backcrossed
you must have backcrossed
they must have backcrossed
Perfeito com V-ing
I must have been backcrossingyou must have been backcrossing
she must have been backcrossing
we must have been backcrossing
you must have been backcrossing
they must have been backcrossing
Negação
Forma simple
I mustn't backcrossyou mustn't backcross
she mustn't backcross
we mustn't backcross
you mustn't backcross
they mustn't backcross
Forma com V-ing
I mustn't be backcrossingyou mustn't be backcrossing
she mustn't be backcrossing
we mustn't be backcrossing
you mustn't be backcrossing
they mustn't be backcrossing
Perfeito
I mustn't have backcrossedyou mustn't have backcrossed
she mustn't have backcrossed
we mustn't have backcrossed
you mustn't have backcrossed
they mustn't have backcrossed
Perfeito com V-ing
I mustn't have been backcrossingyou mustn't have been backcrossing
she mustn't have been backcrossing
we mustn't have been backcrossing
you mustn't have been backcrossing
they mustn't have been backcrossing
Forma interrogativa
Forma simple
must I backcross?must you backcross?
must she backcross?
must we backcross?
must you backcross?
must they backcross?
Forma com V-ing
must I be backcrossing?must you be backcrossing?
must she be backcrossing?
must we be backcrossing?
must you be backcrossing?
must they be backcrossing?
Perfeito
must I have backcrossed?must you have backcrossed?
must she have backcrossed?
must we have backcrossed?
must you have backcrossed?
must they have backcrossed?
Perfeito com V-ing
must I have been backcrossing?must you have been backcrossing?
must she have been backcrossing?
must we have been backcrossing?
must you have been backcrossing?
must they have been backcrossing?
Forma interro-Negação
Forma simple
mustn't I backcross?mustn't you backcross?
mustn't she backcross?
mustn't we backcross?
mustn't you backcross?
mustn't they backcross?
Forma com V-ing
mustn't I be backcrossing?mustn't you be backcrossing?
mustn't she be backcrossing?
mustn't we be backcrossing?
mustn't you be backcrossing?
mustn't they be backcrossing?
Perfeito
mustn't I have backcrossed?mustn't you have backcrossed?
mustn't she have backcrossed?
mustn't we have backcrossed?
mustn't you have backcrossed?
mustn't they have backcrossed?
Perfeito com V-ing
mustn't I have been backcrossing?mustn't you have been backcrossing?
mustn't she have been backcrossing?
mustn't we have been backcrossing?
mustn't you have been backcrossing?
mustn't they have been backcrossing?