Conjugaison du verbe anglais
COULD RETAIN

Verbe régulier : retain - retained - retained

Affirmation

Forme simple	Forme en V-ing
I could retain you could retain she could retain we could retain you could retain they could retain	I could be retaining you could be retaining she could be retaining we could be retaining you could be retaining they could be retaining
Perfect	Perfect en V-ing
I could have retained you could have retained she could have retained we could have retained you could have retained they could have retained	I could have been retaining you could have been retaining she could have been retaining we could have been retaining you could have been retaining they could have been retaining

Négation

Forme simple	Forme en V-ing
I couldn't retain you couldn't retain she couldn't retain we couldn't retain you couldn't retain they couldn't retain	I couldn't be retaining you couldn't be retaining she couldn't be retaining we couldn't be retaining you couldn't be retaining they couldn't be retaining
Perfect	Perfect en V-ing
I couldn't have retained you couldn't have retained she couldn't have retained we couldn't have retained you couldn't have retained they couldn't have retained	I couldn't have been retaining you couldn't have been retaining she couldn't have been retaining we couldn't have been retaining you couldn't have been retaining they couldn't have been retaining

Forme interrogative

Forme simple	Forme en V-ing
could I retain? could you retain? could she retain? could we retain? could you retain? could they retain?	could I be retaining? could you be retaining? could she be retaining? could we be retaining? could you be retaining? could they be retaining?
Perfect	Perfect en V-ing
could I have retained? could you have retained? could she have retained? could we have retained? could you have retained? could they have retained?	could I have been retaining? could you have been retaining? could she have been retaining? could we have been retaining? could you have been retaining? could they have been retaining?

Forme interro-négative

Forme simple	Forme en V-ing
couldn't I retain? couldn't you retain? couldn't she retain? couldn't we retain? couldn't you retain? couldn't they retain?	couldn't I be retaining? couldn't you be retaining? couldn't she be retaining? couldn't we be retaining? couldn't you be retaining? couldn't they be retaining?
Perfect	Perfect en V-ing
couldn't I have retained? couldn't you have retained? couldn't she have retained? couldn't we have retained? couldn't you have retained? couldn't they have retained?	couldn't I have been retaining? couldn't you have been retaining? couldn't she have been retaining? couldn't we have been retaining? couldn't you have been retaining? couldn't they have been retaining?