Conjugaison du verbe anglais COULD ALTER

Verbe régulier : alter - altered - altered
Traduction française : changer

Affirmation

Forme simple

I could alter
you could alter
he could alter
we could alter
you could alter
they could alter

Forme en V-ing

I could be altering
you could be altering
he could be altering
we could be altering
you could be altering
they could be altering

Perfect

I could have altered
you could have altered
he could have altered
we could have altered
you could have altered
they could have altered

Perfect en V-ing

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

Négation

Forme simple

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

Forme en V-ing

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

Perfect

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

Perfect en V-ing

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

Forme interrogative

Forme simple

could I alter?
could you alter?
could he alter?
could we alter?
could you alter?
could they alter?

Forme en V-ing

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

Perfect

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

Perfect en V-ing

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

Forme interro-négative

Forme simple

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

Forme en V-ing

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

Perfect

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

Perfect en V-ing

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