English verb conjugation
COULD DEOXYGENATE

Regular verb: deoxygenate - deoxygenated - deoxygenated

Affirmation

Simple form	V-ing form
I could deoxygenate you could deoxygenate he could deoxygenate we could deoxygenate you could deoxygenate they could deoxygenate	I could be deoxygenating you could be deoxygenating he could be deoxygenating we could be deoxygenating you could be deoxygenating they could be deoxygenating
Perfect	V-ing perfect
I could have deoxygenated you could have deoxygenated he could have deoxygenated we could have deoxygenated you could have deoxygenated they could have deoxygenated	I could have been deoxygenating you could have been deoxygenating he could have been deoxygenating we could have been deoxygenating you could have been deoxygenating they could have been deoxygenating

Negation

Simple form	V-ing form
I couldn't deoxygenate you couldn't deoxygenate he couldn't deoxygenate we couldn't deoxygenate you couldn't deoxygenate they couldn't deoxygenate	I couldn't be deoxygenating you couldn't be deoxygenating he couldn't be deoxygenating we couldn't be deoxygenating you couldn't be deoxygenating they couldn't be deoxygenating
Perfect	V-ing perfect
I couldn't have deoxygenated you couldn't have deoxygenated he couldn't have deoxygenated we couldn't have deoxygenated you couldn't have deoxygenated they couldn't have deoxygenated	I couldn't have been deoxygenating you couldn't have been deoxygenating he couldn't have been deoxygenating we couldn't have been deoxygenating you couldn't have been deoxygenating they couldn't have been deoxygenating

Interrogative form

Simple form	V-ing form
could I deoxygenate? could you deoxygenate? could he deoxygenate? could we deoxygenate? could you deoxygenate? could they deoxygenate?	could I be deoxygenating? could you be deoxygenating? could he be deoxygenating? could we be deoxygenating? could you be deoxygenating? could they be deoxygenating?
Perfect	V-ing perfect
could I have deoxygenated? could you have deoxygenated? could he have deoxygenated? could we have deoxygenated? could you have deoxygenated? could they have deoxygenated?	could I have been deoxygenating? could you have been deoxygenating? could he have been deoxygenating? could we have been deoxygenating? could you have been deoxygenating? could they have been deoxygenating?

Interro-negative form

Simple form	V-ing form
couldn't I deoxygenate? couldn't you deoxygenate? couldn't he deoxygenate? couldn't we deoxygenate? couldn't you deoxygenate? couldn't they deoxygenate?	couldn't I be deoxygenating? couldn't you be deoxygenating? couldn't he be deoxygenating? couldn't we be deoxygenating? couldn't you be deoxygenating? couldn't they be deoxygenating?
Perfect	V-ing perfect
couldn't I have deoxygenated? couldn't you have deoxygenated? couldn't he have deoxygenated? couldn't we have deoxygenated? couldn't you have deoxygenated? couldn't they have deoxygenated?	couldn't I have been deoxygenating? couldn't you have been deoxygenating? couldn't he have been deoxygenating? couldn't we have been deoxygenating? couldn't you have been deoxygenating? couldn't they have been deoxygenating?