I'd be oxygenating you'd be oxygenating he'd be oxygenating we'd be oxygenating you'd be oxygenating they'd be oxygenating
Perfect
I should've oxygenated you should've oxygenated he should've oxygenated we should've oxygenated you should've oxygenated they should've oxygenated
V-ing perfect
I should've been oxygenating you should've been oxygenating he should've been oxygenating we should've been oxygenating you should've been oxygenating they should've been oxygenating
Negation
Simple form
I shouldn't oxygenate you shouldn't oxygenate he shouldn't oxygenate we shouldn't oxygenate you shouldn't oxygenate they shouldn't oxygenate
V-ing form
I shouldn't be oxygenating you shouldn't be oxygenating he shouldn't be oxygenating we shouldn't be oxygenating you shouldn't be oxygenating they shouldn't be oxygenating
Perfect
I shouldn't have oxygenated you shouldn't have oxygenated he shouldn't have oxygenated we shouldn't have oxygenated you shouldn't have oxygenated they shouldn't have oxygenated
V-ing perfect
I shouldn't have been oxygenating you shouldn't have been oxygenating he shouldn't have been oxygenating we shouldn't have been oxygenating you shouldn't have been oxygenating they shouldn't have been oxygenating
Interrogative form
Simple form
should I oxygenate? should you oxygenate? should he oxygenate? should we oxygenate? should you oxygenate? should they oxygenate?
V-ing form
should I be oxygenating? should you be oxygenating? should he be oxygenating? should we be oxygenating? should you be oxygenating? should they be oxygenating?
Perfect
should I have oxygenated? should you have oxygenated? should he have oxygenated? should we have oxygenated? should you have oxygenated? should they have oxygenated?
V-ing perfect
should I have been oxygenating? should you have been oxygenating? should he have been oxygenating? should we have been oxygenating? should you have been oxygenating? should they have been oxygenating?
Interro-negative form
Simple form
shouldn't I oxygenate? shouldn't you oxygenate? shouldn't he oxygenate? shouldn't we oxygenate? shouldn't you oxygenate? shouldn't they oxygenate?
V-ing form
shouldn't I be oxygenating? shouldn't you be oxygenating? shouldn't he be oxygenating? shouldn't we be oxygenating? shouldn't you be oxygenating? shouldn't they be oxygenating?
Perfect
shouldn't I have oxygenated? shouldn't you have oxygenated? shouldn't he have oxygenated? shouldn't we have oxygenated? shouldn't you have oxygenated? shouldn't they have oxygenated?
V-ing perfect
shouldn't I have been oxygenating? shouldn't you have been oxygenating? shouldn't he have been oxygenating? shouldn't we have been oxygenating? shouldn't you have been oxygenating? shouldn't they have been oxygenating?