should burble
Regular verb: burble - burbled- burbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd burble
you'd burble
she'd burble
we'd burble
you'd burble
they'd burble 	I'd be burbling
you'd be burbling
she'd be burbling
we'd be burbling
you'd be burbling
they'd be burbling	I should've burbled
you should've burbled
she should've burbled
we should've burbled
you should've burbled
they should've burbled	I should've been burbling
you should've been burbling
she should've been burbling
we should've been burbling
you should've been burbling
they should've been burbling	

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

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

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