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 ought not to fossilize
you ought not to fossilize
he ought not to fossilize
we ought not to fossilize
you ought not to fossilize
they ought not to fossilize 	I ought not to fossilizing
you ought not to fossilizing
he ought not to fossilizing
we ought not to fossilizing
you ought not to fossilizing
they ought not to fossilizing	I ought not to have fossilized
you ought not to have fossilized
he ought not to have fossilized
we ought not to have fossilized
you ought not to have fossilized
they ought not to have fossilized	I ought not to have been fossilizing
you ought not to have been fossilizing
he ought not to have been fossilizing
we ought not to have been fossilizing
you ought not to have been fossilizing
they ought not 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 	
ought I not to fossilize?
ought you not to fossilize?
ought he not to fossilize?
ought we not to fossilize?
ought you not to fossilize?
ought they not to fossilize? 	ought I not to be fossilizing?
ought you not to be fossilizing?
ought he not to be fossilizing?
ought we not to be fossilizing?
ought you not to be fossilizing?
ought they not to be fossilizing? 	ought I not to have fossilized?
ought you not to have fossilized?
ought he not to have fossilized?
ought we not to have fossilized?
ought you not to have fossilized?
ought they not to have fossilized? 	ought I not to have been fossilizing?
ought you not to have been fossilizing?
ought he not to have been fossilizing?
ought we not to have been fossilizing?
ought you not to have been fossilizing?
ought they not to have been fossilizing?