English verb conjugation
CAN BS

Regular verb: bs - bsed - bsed

Affirmation

Simple form	V-ing form
I can bs you can bs he can bs we can bs you can bs they can bs	I can be bsing you can be bsing he can be bsing we can be bsing you can be bsing they can be bsing
Perfect	V-ing perfect
I can have bsed you can have bsed he can have bsed we can have bsed you can have bsed they can have bsed	I can have been bsing you can have been bsing he can have been bsing we can have been bsing you can have been bsing they can have been bsing

Negation

Simple form	V-ing form
I can't bs you can't bs he can't bs we can't bs you can't bs they can't bs	I can't be bsing you can't be bsing he can't be bsing we can't be bsing you can't be bsing they can't be bsing
Perfect	V-ing perfect
I can't have bsed you can't have bsed he can't have bsed we can't have bsed you can't have bsed they can't have bsed	I can't have been bsing you can't have been bsing he can't have been bsing we can't have been bsing you can't have been bsing they can't have been bsing

Interrogative form

Simple form	V-ing form
can I bs? can you bs? can he bs? can we bs? can you bs? can they bs?	can I be bsing? can you be bsing? can he be bsing? can we be bsing? can you be bsing? can they be bsing?
Perfect	V-ing perfect
can I have bsed? can you have bsed? can he have bsed? can we have bsed? can you have bsed? can they have bsed?	can I have been bsing? can you have been bsing? can he have been bsing? can we have been bsing? can you have been bsing? can they have been bsing?

Interro-negative form

Simple form	V-ing form
can't I bs? can't you bs? can't he bs? can't we bs? can't you bs? can't they bs?	can't I be bsing? can't you be bsing? can't he be bsing? can't we be bsing? can't you be bsing? can't they be bsing?
Perfect	V-ing perfect
can't I have bsed? can't you have bsed? can't he have bsed? can't we have bsed? can't you have bsed? can't they have bsed?	can't I have been bsing? can't you have been bsing? can't he have been bsing? can't we have been bsing? can't you have been bsing? can't they have been bsing?