English verb conjugation
CAN CHAP

Regular verb: chap - chapped - chapped

Affirmation

Simple form	V-ing form
I can chap you can chap he can chap we can chap you can chap they can chap	I can be chapping you can be chapping he can be chapping we can be chapping you can be chapping they can be chapping
Perfect	V-ing perfect
I can have chapped you can have chapped he can have chapped we can have chapped you can have chapped they can have chapped	I can have been chapping you can have been chapping he can have been chapping we can have been chapping you can have been chapping they can have been chapping

Negation

Simple form	V-ing form
I can't chap you can't chap he can't chap we can't chap you can't chap they can't chap	I can't be chapping you can't be chapping he can't be chapping we can't be chapping you can't be chapping they can't be chapping
Perfect	V-ing perfect
I can't have chapped you can't have chapped he can't have chapped we can't have chapped you can't have chapped they can't have chapped	I can't have been chapping you can't have been chapping he can't have been chapping we can't have been chapping you can't have been chapping they can't have been chapping

Interrogative form

Simple form	V-ing form
can I chap? can you chap? can he chap? can we chap? can you chap? can they chap?	can I be chapping? can you be chapping? can he be chapping? can we be chapping? can you be chapping? can they be chapping?
Perfect	V-ing perfect
can I have chapped? can you have chapped? can he have chapped? can we have chapped? can you have chapped? can they have chapped?	can I have been chapping? can you have been chapping? can he have been chapping? can we have been chapping? can you have been chapping? can they have been chapping?

Interro-negative form

Simple form	V-ing form
can't I chap? can't you chap? can't he chap? can't we chap? can't you chap? can't they chap?	can't I be chapping? can't you be chapping? can't he be chapping? can't we be chapping? can't you be chapping? can't they be chapping?
Perfect	V-ing perfect
can't I have chapped? can't you have chapped? can't he have chapped? can't we have chapped? can't you have chapped? can't they have chapped?	can't I have been chapping? can't you have been chapping? can't he have been chapping? can't we have been chapping? can't you have been chapping? can't they have been chapping?