must fossilize
Verbo regular: fossilize - fossilized- fossilized

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must fossilize
you must fossilize
he must fossilize
we must fossilize
you must fossilize
they must fossilize 	I must be fossilizing
you must be fossilizing
he must be fossilizing
we must be fossilizing
you must be fossilizing
they must be fossilizing	I must have fossilized
you must have fossilized
he must have fossilized
we must have fossilized
you must have fossilized
they must have fossilized	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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't fossilize
you mustn't fossilize
he mustn't fossilize
we mustn't fossilize
you mustn't fossilize
they mustn't fossilize 	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	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	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	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I fossilize?
must you fossilize?
must he fossilize?
must we fossilize?
must you fossilize?
must they fossilize? 	must I be fossilizing?
must you be fossilizing?
must he be fossilizing?
must we be fossilizing?
must you be fossilizing?
must they be fossilizing? 	must I have fossilized?
must you have fossilized?
must he have fossilized?
must we have fossilized?
must you have fossilized?
must they have fossilized? 	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? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I fossilize?
mustn't you fossilize?
mustn't he fossilize?
mustn't we fossilize?
mustn't you fossilize?
mustn't they fossilize? 	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? 	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? 	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?