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 could not deoxygenate you could not deoxygenate he could not deoxygenate we could not deoxygenate you could not deoxygenate they could not deoxygenate	I could not be deoxygenating you could not be deoxygenating he could not be deoxygenating we could not be deoxygenating you could not be deoxygenating they could not be deoxygenating
Perfect	V-ing perfect
I could not have deoxygenated you could not have deoxygenated he could not have deoxygenated we could not have deoxygenated you could not have deoxygenated they could not have deoxygenated	I could not have been deoxygenating you could not have been deoxygenating he could not have been deoxygenating we could not have been deoxygenating you could not have been deoxygenating they could not 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
could I not deoxygenate? could you not deoxygenate? could he not deoxygenate? could we not deoxygenate? could you not deoxygenate? could they not deoxygenate?	could I not be deoxygenating? could you not be deoxygenating? could he not be deoxygenating? could we not be deoxygenating? could you not be deoxygenating? could they not be deoxygenating?
Perfect	V-ing perfect
could I not have deoxygenated? could you not have deoxygenated? could he not have deoxygenated? could we not have deoxygenated? could you not have deoxygenated? could they not have deoxygenated?	could I not have been deoxygenating? could you not have been deoxygenating? could he not have been deoxygenating? could we not have been deoxygenating? could you not have been deoxygenating? could they not have been deoxygenating?