English verb conjugation
CAN BAR

Regular verb: bar - barred - barred

Affirmation

Simple form	V-ing form
I can bar you can bar he can bar we can bar you can bar they can bar	I can be barring you can be barring he can be barring we can be barring you can be barring they can be barring
Perfect	V-ing perfect
I can have barred you can have barred he can have barred we can have barred you can have barred they can have barred	I can have been barring you can have been barring he can have been barring we can have been barring you can have been barring they can have been barring

Negation

Simple form	V-ing form
I can't bar you can't bar he can't bar we can't bar you can't bar they can't bar	I can't be barring you can't be barring he can't be barring we can't be barring you can't be barring they can't be barring
Perfect	V-ing perfect
I can't have barred you can't have barred he can't have barred we can't have barred you can't have barred they can't have barred	I can't have been barring you can't have been barring he can't have been barring we can't have been barring you can't have been barring they can't have been barring

Interrogative form

Simple form	V-ing form
can I bar? can you bar? can he bar? can we bar? can you bar? can they bar?	can I be barring? can you be barring? can he be barring? can we be barring? can you be barring? can they be barring?
Perfect	V-ing perfect
can I have barred? can you have barred? can he have barred? can we have barred? can you have barred? can they have barred?	can I have been barring? can you have been barring? can he have been barring? can we have been barring? can you have been barring? can they have been barring?

Interro-negative form

Simple form	V-ing form
can't I bar? can't you bar? can't he bar? can't we bar? can't you bar? can't they bar?	can't I be barring? can't you be barring? can't he be barring? can't we be barring? can't you be barring? can't they be barring?
Perfect	V-ing perfect
can't I have barred? can't you have barred? can't he have barred? can't we have barred? can't you have barred? can't they have barred?	can't I have been barring? can't you have been barring? can't he have been barring? can't we have been barring? can't you have been barring? can't they have been barring?