I could fossilize you could fossilize he could fossilize we could fossilize you could fossilize they could fossilize
Forme en V-ing
I could be fossilizing you could be fossilizing he could be fossilizing we could be fossilizing you could be fossilizing they could be fossilizing
Perfect
I could have fossilized you could have fossilized he 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 he could have been fossilizing we could have been fossilizing you could have been fossilizing they could have been fossilizing
Négation
Forme simple
I could not fossilize you could not fossilize he could not fossilize we could not fossilize you could not fossilize they could not fossilize
Forme en V-ing
I could not be fossilizing you could not be fossilizing he could not be fossilizing we could not be fossilizing you could not be fossilizing they could not be fossilizing
Perfect
I could not have fossilized you could not have fossilized he could not have fossilized we could not have fossilized you could not have fossilized they could not have fossilized
Perfect en V-ing
I could not have been fossilizing you could not have been fossilizing he could not have been fossilizing we could not have been fossilizing you could not have been fossilizing they could not have been fossilizing
Forme interrogative
Forme simple
could I fossilize? could you fossilize? could he fossilize? could we fossilize? could you fossilize? could they fossilize?
Forme en V-ing
could I be fossilizing? could you be fossilizing? could he be fossilizing? could we be fossilizing? could you be fossilizing? could they be fossilizing?
Perfect
could I have fossilized? could you have fossilized? could he 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 he have been fossilizing? could we have been fossilizing? could you have been fossilizing? could they have been fossilizing?
Forme interro-négative
Forme simple
could I not fossilize? could you not fossilize? could he not fossilize? could we not fossilize? could you not fossilize? could they not fossilize?
Forme en V-ing
could I not be fossilizing? could you not be fossilizing? could he not be fossilizing? could we not be fossilizing? could you not be fossilizing? could they not be fossilizing?
Perfect
could I not have fossilized? could you not have fossilized? could he not have fossilized? could we not have fossilized? could you not have fossilized? could they not have fossilized?
Perfect en V-ing
could I not have been fossilizing? could you not have been fossilizing? could he not have been fossilizing? could we not have been fossilizing? could you not have been fossilizing? could they not have been fossilizing?