I could plant you could plant she could plant we could plant you could plant they could plant
Forme en V-ing
I could be planting you could be planting she could be planting we could be planting you could be planting they could be planting
Perfect
I could have planted you could have planted she could have planted we could have planted you could have planted they could have planted
Perfect en V-ing
I could have been planting you could have been planting she could have been planting we could have been planting you could have been planting they could have been planting
Négation
Forme simple
I couldn't plant you couldn't plant she couldn't plant we couldn't plant you couldn't plant they couldn't plant
Forme en V-ing
I couldn't be planting you couldn't be planting she couldn't be planting we couldn't be planting you couldn't be planting they couldn't be planting
Perfect
I couldn't have planted you couldn't have planted she couldn't have planted we couldn't have planted you couldn't have planted they couldn't have planted
Perfect en V-ing
I couldn't have been planting you couldn't have been planting she couldn't have been planting we couldn't have been planting you couldn't have been planting they couldn't have been planting
Forme interrogative
Forme simple
could I plant? could you plant? could she plant? could we plant? could you plant? could they plant?
Forme en V-ing
could I be planting? could you be planting? could she be planting? could we be planting? could you be planting? could they be planting?
Perfect
could I have planted? could you have planted? could she have planted? could we have planted? could you have planted? could they have planted?
Perfect en V-ing
could I have been planting? could you have been planting? could she have been planting? could we have been planting? could you have been planting? could they have been planting?
Forme interro-négative
Forme simple
couldn't I plant? couldn't you plant? couldn't she plant? couldn't we plant? couldn't you plant? couldn't they plant?
Forme en V-ing
couldn't I be planting? couldn't you be planting? couldn't she be planting? couldn't we be planting? couldn't you be planting? couldn't they be planting?
Perfect
couldn't I have planted? couldn't you have planted? couldn't she have planted? couldn't we have planted? couldn't you have planted? couldn't they have planted?
Perfect en V-ing
couldn't I have been planting? couldn't you have been planting? couldn't she have been planting? couldn't we have been planting? couldn't you have been planting? couldn't they have been planting?