should whiffle
Regular verb: whiffle - whiffled- whiffled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd whiffle
you'd whiffle
he'd whiffle
we'd whiffle
you'd whiffle
they'd whiffle 	I'd be whiffling
you'd be whiffling
he'd be whiffling
we'd be whiffling
you'd be whiffling
they'd be whiffling	I should've whiffled
you should've whiffled
he should've whiffled
we should've whiffled
you should've whiffled
they should've whiffled	I should've been whiffling
you should've been whiffling
he should've been whiffling
we should've been whiffling
you should've been whiffling
they should've been whiffling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't whiffle
you shouldn't whiffle
he shouldn't whiffle
we shouldn't whiffle
you shouldn't whiffle
they shouldn't whiffle 	I shouldn't be whiffling
you shouldn't be whiffling
he shouldn't be whiffling
we shouldn't be whiffling
you shouldn't be whiffling
they shouldn't be whiffling	I shouldn't have whiffled
you shouldn't have whiffled
he shouldn't have whiffled
we shouldn't have whiffled
you shouldn't have whiffled
they shouldn't have whiffled	I shouldn't have been whiffling
you shouldn't have been whiffling
he shouldn't have been whiffling
we shouldn't have been whiffling
you shouldn't have been whiffling
they shouldn't have been whiffling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I whiffle?
should you whiffle?
should he whiffle?
should we whiffle?
should you whiffle?
should they whiffle? 	should I be whiffling?
should you be whiffling?
should he be whiffling?
should we be whiffling?
should you be whiffling?
should they be whiffling? 	should I have whiffled?
should you have whiffled?
should he have whiffled?
should we have whiffled?
should you have whiffled?
should they have whiffled? 	should I have been whiffling?
should you have been whiffling?
should he have been whiffling?
should we have been whiffling?
should you have been whiffling?
should they have been whiffling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I whiffle?
shouldn't you whiffle?
shouldn't he whiffle?
shouldn't we whiffle?
shouldn't you whiffle?
shouldn't they whiffle? 	shouldn't I be whiffling?
shouldn't you be whiffling?
shouldn't he be whiffling?
shouldn't we be whiffling?
shouldn't you be whiffling?
shouldn't they be whiffling? 	shouldn't I have whiffled?
shouldn't you have whiffled?
shouldn't he have whiffled?
shouldn't we have whiffled?
shouldn't you have whiffled?
shouldn't they have whiffled? 	shouldn't I have been whiffling?
shouldn't you have been whiffling?
shouldn't he have been whiffling?
shouldn't we have been whiffling?
shouldn't you have been whiffling?
shouldn't they have been whiffling?