English verb conjugation
COULD PERFUME

Regular verb: perfume - perfumed - perfumed

Affirmation

Simple form	V-ing form
I could perfume you could perfume she could perfume we could perfume you could perfume they could perfume	I could be perfuming you could be perfuming she could be perfuming we could be perfuming you could be perfuming they could be perfuming
Perfect	V-ing perfect
I could have perfumed you could have perfumed she could have perfumed we could have perfumed you could have perfumed they could have perfumed	I could have been perfuming you could have been perfuming she could have been perfuming we could have been perfuming you could have been perfuming they could have been perfuming

Negation

Simple form	V-ing form
I could not perfume you could not perfume she could not perfume we could not perfume you could not perfume they could not perfume	I could not be perfuming you could not be perfuming she could not be perfuming we could not be perfuming you could not be perfuming they could not be perfuming
Perfect	V-ing perfect
I could not have perfumed you could not have perfumed she could not have perfumed we could not have perfumed you could not have perfumed they could not have perfumed	I could not have been perfuming you could not have been perfuming she could not have been perfuming we could not have been perfuming you could not have been perfuming they could not have been perfuming

Interrogative form

Simple form	V-ing form
could I perfume? could you perfume? could she perfume? could we perfume? could you perfume? could they perfume?	could I be perfuming? could you be perfuming? could she be perfuming? could we be perfuming? could you be perfuming? could they be perfuming?
Perfect	V-ing perfect
could I have perfumed? could you have perfumed? could she have perfumed? could we have perfumed? could you have perfumed? could they have perfumed?	could I have been perfuming? could you have been perfuming? could she have been perfuming? could we have been perfuming? could you have been perfuming? could they have been perfuming?

Interro-negative form

Simple form	V-ing form
could I not perfume? could you not perfume? could she not perfume? could we not perfume? could you not perfume? could they not perfume?	could I not be perfuming? could you not be perfuming? could she not be perfuming? could we not be perfuming? could you not be perfuming? could they not be perfuming?
Perfect	V-ing perfect
could I not have perfumed? could you not have perfumed? could she not have perfumed? could we not have perfumed? could you not have perfumed? could they not have perfumed?	could I not have been perfuming? could you not have been perfuming? could she not have been perfuming? could we not have been perfuming? could you not have been perfuming? could they not have been perfuming?