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