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