I could bounce you could bounce he could bounce we could bounce you could bounce they could bounce
Forme en V-ing
I could be bouncing you could be bouncing he could be bouncing we could be bouncing you could be bouncing they could be bouncing
Perfect
I could have bounced you could have bounced he could have bounced we could have bounced you could have bounced they could have bounced
Perfect en V-ing
I could have been bouncing you could have been bouncing he could have been bouncing we could have been bouncing you could have been bouncing they could have been bouncing
Négation
Forme simple
I couldn't bounce you couldn't bounce he couldn't bounce we couldn't bounce you couldn't bounce they couldn't bounce
Forme en V-ing
I couldn't be bouncing you couldn't be bouncing he couldn't be bouncing we couldn't be bouncing you couldn't be bouncing they couldn't be bouncing
Perfect
I couldn't have bounced you couldn't have bounced he couldn't have bounced we couldn't have bounced you couldn't have bounced they couldn't have bounced
Perfect en V-ing
I couldn't have been bouncing you couldn't have been bouncing he couldn't have been bouncing we couldn't have been bouncing you couldn't have been bouncing they couldn't have been bouncing
Forme interrogative
Forme simple
could I bounce? could you bounce? could he bounce? could we bounce? could you bounce? could they bounce?
Forme en V-ing
could I be bouncing? could you be bouncing? could he be bouncing? could we be bouncing? could you be bouncing? could they be bouncing?
Perfect
could I have bounced? could you have bounced? could he have bounced? could we have bounced? could you have bounced? could they have bounced?
Perfect en V-ing
could I have been bouncing? could you have been bouncing? could he have been bouncing? could we have been bouncing? could you have been bouncing? could they have been bouncing?
Forme interro-négative
Forme simple
couldn't I bounce? couldn't you bounce? couldn't he bounce? couldn't we bounce? couldn't you bounce? couldn't they bounce?
Forme en V-ing
couldn't I be bouncing? couldn't you be bouncing? couldn't he be bouncing? couldn't we be bouncing? couldn't you be bouncing? couldn't they be bouncing?
Perfect
couldn't I have bounced? couldn't you have bounced? couldn't he have bounced? couldn't we have bounced? couldn't you have bounced? couldn't they have bounced?
Perfect en V-ing
couldn't I have been bouncing? couldn't you have been bouncing? couldn't he have been bouncing? couldn't we have been bouncing? couldn't you have been bouncing? couldn't they have been bouncing?