I could thicken you could thicken she could thicken we could thicken you could thicken they could thicken
Forme en V-ing
I could be thickening you could be thickening she could be thickening we could be thickening you could be thickening they could be thickening
Perfect
I could have thickened you could have thickened she could have thickened we could have thickened you could have thickened they could have thickened
Perfect en V-ing
I could have been thickening you could have been thickening she could have been thickening we could have been thickening you could have been thickening they could have been thickening
Négation
Forme simple
I could not thicken you could not thicken she could not thicken we could not thicken you could not thicken they could not thicken
Forme en V-ing
I could not be thickening you could not be thickening she could not be thickening we could not be thickening you could not be thickening they could not be thickening
Perfect
I could not have thickened you could not have thickened she could not have thickened we could not have thickened you could not have thickened they could not have thickened
Perfect en V-ing
I could not have been thickening you could not have been thickening she could not have been thickening we could not have been thickening you could not have been thickening they could not have been thickening
Forme interrogative
Forme simple
could I thicken? could you thicken? could she thicken? could we thicken? could you thicken? could they thicken?
Forme en V-ing
could I be thickening? could you be thickening? could she be thickening? could we be thickening? could you be thickening? could they be thickening?
Perfect
could I have thickened? could you have thickened? could she have thickened? could we have thickened? could you have thickened? could they have thickened?
Perfect en V-ing
could I have been thickening? could you have been thickening? could she have been thickening? could we have been thickening? could you have been thickening? could they have been thickening?
Forme interro-négative
Forme simple
could I not thicken? could you not thicken? could she not thicken? could we not thicken? could you not thicken? could they not thicken?
Forme en V-ing
could I not be thickening? could you not be thickening? could she not be thickening? could we not be thickening? could you not be thickening? could they not be thickening?
Perfect
could I not have thickened? could you not have thickened? could she not have thickened? could we not have thickened? could you not have thickened? could they not have thickened?
Perfect en V-ing
could I not have been thickening? could you not have been thickening? could she not have been thickening? could we not have been thickening? could you not have been thickening? could they not have been thickening?