I ought to fossilize you ought to fossilize she ought to fossilize we ought to fossilize you ought to fossilize they ought to fossilize
V-ing form
I ought to be fossilizing you ought to be fossilizing she ought to be fossilizing we ought to be fossilizing you ought to be fossilizing they ought to be fossilizing
Perfect
I ought to have fossilized you ought to have fossilized she ought to have fossilized we ought to have fossilized you ought to have fossilized they ought to have fossilized
V-ing perfect
I ought to have been fossilizing you ought to have been fossilizing she 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
I oughtn't to fossilize you oughtn't to fossilize she oughtn't to fossilize we oughtn't to fossilize you oughtn't to fossilize they oughtn't to fossilize
V-ing form
I oughtn't to be fossilizing you oughtn't to be fossilizing she oughtn't to be fossilizing we oughtn't to be fossilizing you oughtn't to be fossilizing they oughtn't to be fossilizing
Perfect
I oughtn't to have fossilized you oughtn't to have fossilized she oughtn't to have fossilized we oughtn't to have fossilized you oughtn't to have fossilized they oughtn't to have fossilized
V-ing perfect
I oughtn't to have been fossilizing you oughtn't to have been fossilizing she 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
ought to I fossilize? ought to you fossilize? ought to she fossilize? ought to we fossilize? ought to you fossilize? ought to they fossilize?
V-ing form
ought to I be fossilizing? ought to you be fossilizing? ought to she be fossilizing? ought to we be fossilizing? ought to you be fossilizing? ought to they be fossilizing?
Perfect
ought to I have fossilized? ought to you have fossilized? ought to she have fossilized? ought to we have fossilized? ought to you have fossilized? ought to they have fossilized?
V-ing perfect
ought to I have been fossilizing? ought to you have been fossilizing? ought to she 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
oughtn't I to fossilize? oughtn't you to fossilize? oughtn't she to fossilize? oughtn't we to fossilize? oughtn't you to fossilize? oughtn't they to fossilize?
V-ing form
oughtn't I to be fossilizing? oughtn't you to be fossilizing? oughtn't she to be fossilizing? oughtn't we to be fossilizing? oughtn't you to be fossilizing? oughtn't they to be fossilizing?
Perfect
oughtn't I to have fossilized? oughtn't you to have fossilized? oughtn't she to have fossilized? oughtn't we to have fossilized? oughtn't you to have fossilized? oughtn't they to have fossilized?
V-ing perfect
oughtn't I to have been fossilizing? oughtn't you to have been fossilizing? oughtn't she 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?