I ought to oxidize you ought to oxidize he ought to oxidize we ought to oxidize you ought to oxidize they ought to oxidize
V-ing form
I ought to be oxidizing you ought to be oxidizing he ought to be oxidizing we ought to be oxidizing you ought to be oxidizing they ought to be oxidizing
Perfect
I ought to have oxidized you ought to have oxidized he ought to have oxidized we ought to have oxidized you ought to have oxidized they ought to have oxidized
V-ing perfect
I ought to have been oxidizing you ought to have been oxidizing he ought to have been oxidizing we ought to have been oxidizing you ought to have been oxidizing they ought to have been oxidizing
Negation
Simple form
I oughtn't to oxidize you oughtn't to oxidize he oughtn't to oxidize we oughtn't to oxidize you oughtn't to oxidize they oughtn't to oxidize
V-ing form
I oughtn't to be oxidizing you oughtn't to be oxidizing he oughtn't to be oxidizing we oughtn't to be oxidizing you oughtn't to be oxidizing they oughtn't to be oxidizing
Perfect
I oughtn't to have oxidized you oughtn't to have oxidized he oughtn't to have oxidized we oughtn't to have oxidized you oughtn't to have oxidized they oughtn't to have oxidized
V-ing perfect
I oughtn't to have been oxidizing you oughtn't to have been oxidizing he oughtn't to have been oxidizing we oughtn't to have been oxidizing you oughtn't to have been oxidizing they oughtn't to have been oxidizing
Interrogative form
Simple form
ought to I oxidize? ought to you oxidize? ought to he oxidize? ought to we oxidize? ought to you oxidize? ought to they oxidize?
V-ing form
ought to I be oxidizing? ought to you be oxidizing? ought to he be oxidizing? ought to we be oxidizing? ought to you be oxidizing? ought to they be oxidizing?
Perfect
ought to I have oxidized? ought to you have oxidized? ought to he have oxidized? ought to we have oxidized? ought to you have oxidized? ought to they have oxidized?
V-ing perfect
ought to I have been oxidizing? ought to you have been oxidizing? ought to he have been oxidizing? ought to we have been oxidizing? ought to you have been oxidizing? ought to they have been oxidizing?
Interro-negative form
Simple form
oughtn't I to oxidize? oughtn't you to oxidize? oughtn't he to oxidize? oughtn't we to oxidize? oughtn't you to oxidize? oughtn't they to oxidize?
V-ing form
oughtn't I to be oxidizing? oughtn't you to be oxidizing? oughtn't he to be oxidizing? oughtn't we to be oxidizing? oughtn't you to be oxidizing? oughtn't they to be oxidizing?
Perfect
oughtn't I to have oxidized? oughtn't you to have oxidized? oughtn't he to have oxidized? oughtn't we to have oxidized? oughtn't you to have oxidized? oughtn't they to have oxidized?
V-ing perfect
oughtn't I to have been oxidizing? oughtn't you to have been oxidizing? oughtn't he to have been oxidizing? oughtn't we to have been oxidizing? oughtn't you to have been oxidizing? oughtn't they to have been oxidizing?