English verb conjugation
CAN BURP

Regular verb: burp - burped - burped

Affirmation

Simple form	V-ing form
I can burp you can burp he can burp we can burp you can burp they can burp	I can be burping you can be burping he can be burping we can be burping you can be burping they can be burping
Perfect	V-ing perfect
I can have burped you can have burped he can have burped we can have burped you can have burped they can have burped	I can have been burping you can have been burping he can have been burping we can have been burping you can have been burping they can have been burping

Negation

Simple form	V-ing form
I can't burp you can't burp he can't burp we can't burp you can't burp they can't burp	I can't be burping you can't be burping he can't be burping we can't be burping you can't be burping they can't be burping
Perfect	V-ing perfect
I can't have burped you can't have burped he can't have burped we can't have burped you can't have burped they can't have burped	I can't have been burping you can't have been burping he can't have been burping we can't have been burping you can't have been burping they can't have been burping

Interrogative form

Simple form	V-ing form
can I burp? can you burp? can he burp? can we burp? can you burp? can they burp?	can I be burping? can you be burping? can he be burping? can we be burping? can you be burping? can they be burping?
Perfect	V-ing perfect
can I have burped? can you have burped? can he have burped? can we have burped? can you have burped? can they have burped?	can I have been burping? can you have been burping? can he have been burping? can we have been burping? can you have been burping? can they have been burping?

Interro-negative form

Simple form	V-ing form
can't I burp? can't you burp? can't he burp? can't we burp? can't you burp? can't they burp?	can't I be burping? can't you be burping? can't he be burping? can't we be burping? can't you be burping? can't they be burping?
Perfect	V-ing perfect
can't I have burped? can't you have burped? can't he have burped? can't we have burped? can't you have burped? can't they have burped?	can't I have been burping? can't you have been burping? can't he have been burping? can't we have been burping? can't you have been burping? can't they have been burping?