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