ought to fossilize
Regular verb: fossilize - fossilized- fossilized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to fossilize
you ought to fossilize
he ought to fossilize
we ought to fossilize
you ought to fossilize
they ought to fossilize 	I ought to be fossilizing
you ought to be fossilizing
he ought to be fossilizing
we ought to be fossilizing
you ought to be fossilizing
they ought to be fossilizing	I ought to have fossilized
you ought to have fossilized
he ought to have fossilized
we ought to have fossilized
you ought to have fossilized
they ought to have fossilized	I ought to have been fossilizing
you ought to have been fossilizing
he ought to have been fossilizing
we ought to have been fossilizing
you ought to have been fossilizing
they ought to have been fossilizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to fossilize
you oughtn't to fossilize
he oughtn't to fossilize
we oughtn't to fossilize
you oughtn't to fossilize
they oughtn't to fossilize 	I oughtn't to be fossilizing
you oughtn't to be fossilizing
he oughtn't to be fossilizing
we oughtn't to be fossilizing
you oughtn't to be fossilizing
they oughtn't to be fossilizing	I oughtn't to have fossilized
you oughtn't to have fossilized
he oughtn't to have fossilized
we oughtn't to have fossilized
you oughtn't to have fossilized
they oughtn't to have fossilized	I oughtn't to have been fossilizing
you oughtn't to have been fossilizing
he oughtn't to have been fossilizing
we oughtn't to have been fossilizing
you oughtn't to have been fossilizing
they oughtn't to have been fossilizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I fossilize?
ought to you fossilize?
ought to he fossilize?
ought to we fossilize?
ought to you fossilize?
ought to they fossilize? 	ought to I be fossilizing?
ought to you be fossilizing?
ought to he be fossilizing?
ought to we be fossilizing?
ought to you be fossilizing?
ought to they be fossilizing? 	ought to I have fossilized?
ought to you have fossilized?
ought to he have fossilized?
ought to we have fossilized?
ought to you have fossilized?
ought to they have fossilized? 	ought to I have been fossilizing?
ought to you have been fossilizing?
ought to he have been fossilizing?
ought to we have been fossilizing?
ought to you have been fossilizing?
ought to they have been fossilizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to fossilize?
oughtn't you to fossilize?
oughtn't he to fossilize?
oughtn't we to fossilize?
oughtn't you to fossilize?
oughtn't they to fossilize? 	oughtn't I to be fossilizing?
oughtn't you to be fossilizing?
oughtn't he to be fossilizing?
oughtn't we to be fossilizing?
oughtn't you to be fossilizing?
oughtn't they to be fossilizing? 	oughtn't I to have fossilized?
oughtn't you to have fossilized?
oughtn't he to have fossilized?
oughtn't we to have fossilized?
oughtn't you to have fossilized?
oughtn't they to have fossilized? 	oughtn't I to have been fossilizing?
oughtn't you to have been fossilizing?
oughtn't he to have been fossilizing?
oughtn't we to have been fossilizing?
oughtn't you to have been fossilizing?
oughtn't they to have been fossilizing?