Conjugaison du verbe anglais COULD BACKCROSS

Verbe régulier : backcross - backcrossed - backcrossed

Affirmation

Forme simple

I could backcross
you could backcross
he could backcross
we could backcross
you could backcross
they could backcross

Forme en V-ing

I could be backcrossing
you could be backcrossing
he could be backcrossing
we could be backcrossing
you could be backcrossing
they could be backcrossing

Perfect

I could have backcrossed
you could have backcrossed
he could have backcrossed
we could have backcrossed
you could have backcrossed
they could have backcrossed

Perfect en V-ing

I could have been backcrossing
you could have been backcrossing
he could have been backcrossing
we could have been backcrossing
you could have been backcrossing
they could have been backcrossing

Négation

Forme simple

I couldn't backcross
you couldn't backcross
he couldn't backcross
we couldn't backcross
you couldn't backcross
they couldn't backcross

Forme en V-ing

I couldn't be backcrossing
you couldn't be backcrossing
he couldn't be backcrossing
we couldn't be backcrossing
you couldn't be backcrossing
they couldn't be backcrossing

Perfect

I couldn't have backcrossed
you couldn't have backcrossed
he couldn't have backcrossed
we couldn't have backcrossed
you couldn't have backcrossed
they couldn't have backcrossed

Perfect en V-ing

I couldn't have been backcrossing
you couldn't have been backcrossing
he couldn't have been backcrossing
we couldn't have been backcrossing
you couldn't have been backcrossing
they couldn't have been backcrossing

Forme interrogative

Forme simple

could I backcross?
could you backcross?
could he backcross?
could we backcross?
could you backcross?
could they backcross?

Forme en V-ing

could I be backcrossing?
could you be backcrossing?
could he be backcrossing?
could we be backcrossing?
could you be backcrossing?
could they be backcrossing?

Perfect

could I have backcrossed?
could you have backcrossed?
could he have backcrossed?
could we have backcrossed?
could you have backcrossed?
could they have backcrossed?

Perfect en V-ing

could I have been backcrossing?
could you have been backcrossing?
could he have been backcrossing?
could we have been backcrossing?
could you have been backcrossing?
could they have been backcrossing?

Forme interro-négative

Forme simple

couldn't I backcross?
couldn't you backcross?
couldn't he backcross?
couldn't we backcross?
couldn't you backcross?
couldn't they backcross?

Forme en V-ing

couldn't I be backcrossing?
couldn't you be backcrossing?
couldn't he be backcrossing?
couldn't we be backcrossing?
couldn't you be backcrossing?
couldn't they be backcrossing?

Perfect

couldn't I have backcrossed?
couldn't you have backcrossed?
couldn't he have backcrossed?
couldn't we have backcrossed?
couldn't you have backcrossed?
couldn't they have backcrossed?

Perfect en V-ing

couldn't I have been backcrossing?
couldn't you have been backcrossing?
couldn't he have been backcrossing?
couldn't we have been backcrossing?
couldn't you have been backcrossing?
couldn't they have been backcrossing?

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