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