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