I can perfume you can perfume he can perfume we can perfume you can perfume they can perfume
V-ing form
I can be perfuming you can be perfuming he can be perfuming we can be perfuming you can be perfuming they can be perfuming
Perfect
I can have perfumed you can have perfumed he can have perfumed we can have perfumed you can have perfumed they can have perfumed
V-ing perfect
I can have been perfuming you can have been perfuming he can have been perfuming we can have been perfuming you can have been perfuming they can have been perfuming
Negation
Simple form
I cannot perfume you cannot perfume he cannot perfume we cannot perfume you cannot perfume they cannot perfume
V-ing form
I cannot be perfuming you cannot be perfuming he cannot be perfuming we cannot be perfuming you cannot be perfuming they cannot be perfuming
Perfect
I cannot have perfumed you cannot have perfumed he cannot have perfumed we cannot have perfumed you cannot have perfumed they cannot have perfumed
V-ing perfect
I cannot have been perfuming you cannot have been perfuming he cannot have been perfuming we cannot have been perfuming you cannot have been perfuming they cannot have been perfuming
Interrogative form
Simple form
can I perfume? can you perfume? can he perfume? can we perfume? can you perfume? can they perfume?
V-ing form
can I be perfuming? can you be perfuming? can he be perfuming? can we be perfuming? can you be perfuming? can they be perfuming?
Perfect
can I have perfumed? can you have perfumed? can he have perfumed? can we have perfumed? can you have perfumed? can they have perfumed?
V-ing perfect
can I have been perfuming? can you have been perfuming? can he have been perfuming? can we have been perfuming? can you have been perfuming? can they have been perfuming?
Interro-negative form
Simple form
can I not perfume? can you not perfume? can he not perfume? can we not perfume? can you not perfume? can they not perfume?
V-ing form
can I not be perfuming? can you not be perfuming? can he not be perfuming? can we not be perfuming? can you not be perfuming? can they not be perfuming?
Perfect
can I not have perfumed? can you not have perfumed? can he not have perfumed? can we not have perfumed? can you not have perfumed? can they not have perfumed?
V-ing perfect
can I not have been perfuming? can you not have been perfuming? can he not have been perfuming? can we not have been perfuming? can you not have been perfuming? can they not have been perfuming?