Conjugaison du verbe anglais
COULD ROISTER

Verbe régulier : roister - roistered - roistered

Affirmation

Forme simple	Forme en V-ing
I could roister you could roister she could roister we could roister you could roister they could roister	I could be roistering you could be roistering she could be roistering we could be roistering you could be roistering they could be roistering
Perfect	Perfect en V-ing
I could have roistered you could have roistered she could have roistered we could have roistered you could have roistered they could have roistered	I could have been roistering you could have been roistering she could have been roistering we could have been roistering you could have been roistering they could have been roistering

Négation

Forme simple	Forme en V-ing
I could not roister you could not roister she could not roister we could not roister you could not roister they could not roister	I could not be roistering you could not be roistering she could not be roistering we could not be roistering you could not be roistering they could not be roistering
Perfect	Perfect en V-ing
I could not have roistered you could not have roistered she could not have roistered we could not have roistered you could not have roistered they could not have roistered	I could not have been roistering you could not have been roistering she could not have been roistering we could not have been roistering you could not have been roistering they could not have been roistering

Forme interrogative

Forme simple	Forme en V-ing
could I roister? could you roister? could she roister? could we roister? could you roister? could they roister?	could I be roistering? could you be roistering? could she be roistering? could we be roistering? could you be roistering? could they be roistering?
Perfect	Perfect en V-ing
could I have roistered? could you have roistered? could she have roistered? could we have roistered? could you have roistered? could they have roistered?	could I have been roistering? could you have been roistering? could she have been roistering? could we have been roistering? could you have been roistering? could they have been roistering?

Forme interro-négative

Forme simple	Forme en V-ing
could I not roister? could you not roister? could she not roister? could we not roister? could you not roister? could they not roister?	could I not be roistering? could you not be roistering? could she not be roistering? could we not be roistering? could you not be roistering? could they not be roistering?
Perfect	Perfect en V-ing
could I not have roistered? could you not have roistered? could she not have roistered? could we not have roistered? could you not have roistered? could they not have roistered?	could I not have been roistering? could you not have been roistering? could she not have been roistering? could we not have been roistering? could you not have been roistering? could they not have been roistering?