English verb conjugation
CAN CHARM

Regular verb: charm - charmed - charmed

Affirmation

Simple form	V-ing form
I can charm you can charm he can charm we can charm you can charm they can charm	I can be charming you can be charming he can be charming we can be charming you can be charming they can be charming
Perfect	V-ing perfect
I can have charmed you can have charmed he can have charmed we can have charmed you can have charmed they can have charmed	I can have been charming you can have been charming he can have been charming we can have been charming you can have been charming they can have been charming

Negation

Simple form	V-ing form
I cannot charm you cannot charm he cannot charm we cannot charm you cannot charm they cannot charm	I cannot be charming you cannot be charming he cannot be charming we cannot be charming you cannot be charming they cannot be charming
Perfect	V-ing perfect
I cannot have charmed you cannot have charmed he cannot have charmed we cannot have charmed you cannot have charmed they cannot have charmed	I cannot have been charming you cannot have been charming he cannot have been charming we cannot have been charming you cannot have been charming they cannot have been charming

Interrogative form

Simple form	V-ing form
can I charm? can you charm? can he charm? can we charm? can you charm? can they charm?	can I be charming? can you be charming? can he be charming? can we be charming? can you be charming? can they be charming?
Perfect	V-ing perfect
can I have charmed? can you have charmed? can he have charmed? can we have charmed? can you have charmed? can they have charmed?	can I have been charming? can you have been charming? can he have been charming? can we have been charming? can you have been charming? can they have been charming?

Interro-negative form

Simple form	V-ing form
can I not charm? can you not charm? can he not charm? can we not charm? can you not charm? can they not charm?	can I not be charming? can you not be charming? can he not be charming? can we not be charming? can you not be charming? can they not be charming?
Perfect	V-ing perfect
can I not have charmed? can you not have charmed? can he not have charmed? can we not have charmed? can you not have charmed? can they not have charmed?	can I not have been charming? can you not have been charming? can he not have been charming? can we not have been charming? can you not have been charming? can they not have been charming?