English verb conjugation
CAN BURBLE

Regular verb: burble - burbled - burbled

Affirmation

Simple form	V-ing form
I can burble you can burble she can burble we can burble you can burble they can burble	I can be burbling you can be burbling she can be burbling we can be burbling you can be burbling they can be burbling
Perfect	V-ing perfect
I can have burbled you can have burbled she can have burbled we can have burbled you can have burbled they can have burbled	I can have been burbling you can have been burbling she can have been burbling we can have been burbling you can have been burbling they can have been burbling

Negation

Simple form	V-ing form
I can't burble you can't burble she can't burble we can't burble you can't burble they can't burble	I can't be burbling you can't be burbling she can't be burbling we can't be burbling you can't be burbling they can't be burbling
Perfect	V-ing perfect
I can't have burbled you can't have burbled she can't have burbled we can't have burbled you can't have burbled they can't have burbled	I can't have been burbling you can't have been burbling she can't have been burbling we can't have been burbling you can't have been burbling they can't have been burbling

Interrogative form

Simple form	V-ing form
can I burble? can you burble? can she burble? can we burble? can you burble? can they burble?	can I be burbling? can you be burbling? can she be burbling? can we be burbling? can you be burbling? can they be burbling?
Perfect	V-ing perfect
can I have burbled? can you have burbled? can she have burbled? can we have burbled? can you have burbled? can they have burbled?	can I have been burbling? can you have been burbling? can she have been burbling? can we have been burbling? can you have been burbling? can they have been burbling?

Interro-negative form

Simple form	V-ing form
can't I burble? can't you burble? can't she burble? can't we burble? can't you burble? can't they burble?	can't I be burbling? can't you be burbling? can't she be burbling? can't we be burbling? can't you be burbling? can't they be burbling?
Perfect	V-ing perfect
can't I have burbled? can't you have burbled? can't she have burbled? can't we have burbled? can't you have burbled? can't they have burbled?	can't I have been burbling? can't you have been burbling? can't she have been burbling? can't we have been burbling? can't you have been burbling? can't they have been burbling?