I ought to oxygenate you ought to oxygenate she ought to oxygenate we ought to oxygenate you ought to oxygenate they ought to oxygenate
V-ing form
I ought to be oxygenating you ought to be oxygenating she ought to be oxygenating we ought to be oxygenating you ought to be oxygenating they ought to be oxygenating
Perfect
I ought to have oxygenated you ought to have oxygenated she ought to have oxygenated we ought to have oxygenated you ought to have oxygenated they ought to have oxygenated
V-ing perfect
I ought to have been oxygenating you ought to have been oxygenating she ought to have been oxygenating we ought to have been oxygenating you ought to have been oxygenating they ought to have been oxygenating
Negation
Simple form
I oughtn't to oxygenate you oughtn't to oxygenate she oughtn't to oxygenate we oughtn't to oxygenate you oughtn't to oxygenate they oughtn't to oxygenate
V-ing form
I oughtn't to be oxygenating you oughtn't to be oxygenating she oughtn't to be oxygenating we oughtn't to be oxygenating you oughtn't to be oxygenating they oughtn't to be oxygenating
Perfect
I oughtn't to have oxygenated you oughtn't to have oxygenated she oughtn't to have oxygenated we oughtn't to have oxygenated you oughtn't to have oxygenated they oughtn't to have oxygenated
V-ing perfect
I oughtn't to have been oxygenating you oughtn't to have been oxygenating she oughtn't to have been oxygenating we oughtn't to have been oxygenating you oughtn't to have been oxygenating they oughtn't to have been oxygenating
Interrogative form
Simple form
ought to I oxygenate? ought to you oxygenate? ought to she oxygenate? ought to we oxygenate? ought to you oxygenate? ought to they oxygenate?
V-ing form
ought to I be oxygenating? ought to you be oxygenating? ought to she be oxygenating? ought to we be oxygenating? ought to you be oxygenating? ought to they be oxygenating?
Perfect
ought to I have oxygenated? ought to you have oxygenated? ought to she have oxygenated? ought to we have oxygenated? ought to you have oxygenated? ought to they have oxygenated?
V-ing perfect
ought to I have been oxygenating? ought to you have been oxygenating? ought to she have been oxygenating? ought to we have been oxygenating? ought to you have been oxygenating? ought to they have been oxygenating?
Interro-negative form
Simple form
oughtn't I to oxygenate? oughtn't you to oxygenate? oughtn't she to oxygenate? oughtn't we to oxygenate? oughtn't you to oxygenate? oughtn't they to oxygenate?
V-ing form
oughtn't I to be oxygenating? oughtn't you to be oxygenating? oughtn't she to be oxygenating? oughtn't we to be oxygenating? oughtn't you to be oxygenating? oughtn't they to be oxygenating?
Perfect
oughtn't I to have oxygenated? oughtn't you to have oxygenated? oughtn't she to have oxygenated? oughtn't we to have oxygenated? oughtn't you to have oxygenated? oughtn't they to have oxygenated?
V-ing perfect
oughtn't I to have been oxygenating? oughtn't you to have been oxygenating? oughtn't she to have been oxygenating? oughtn't we to have been oxygenating? oughtn't you to have been oxygenating? oughtn't they to have been oxygenating?