should staple
Regular verb: staple - stapled- stapled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd staple
you'd staple
he'd staple
we'd staple
you'd staple
they'd staple 	I'd be stapling
you'd be stapling
he'd be stapling
we'd be stapling
you'd be stapling
they'd be stapling	I should've stapled
you should've stapled
he should've stapled
we should've stapled
you should've stapled
they should've stapled	I should've been stapling
you should've been stapling
he should've been stapling
we should've been stapling
you should've been stapling
they should've been stapling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't staple
you shouldn't staple
he shouldn't staple
we shouldn't staple
you shouldn't staple
they shouldn't staple 	I shouldn't be stapling
you shouldn't be stapling
he shouldn't be stapling
we shouldn't be stapling
you shouldn't be stapling
they shouldn't be stapling	I shouldn't have stapled
you shouldn't have stapled
he shouldn't have stapled
we shouldn't have stapled
you shouldn't have stapled
they shouldn't have stapled	I shouldn't have been stapling
you shouldn't have been stapling
he shouldn't have been stapling
we shouldn't have been stapling
you shouldn't have been stapling
they shouldn't have been stapling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I staple?
should you staple?
should he staple?
should we staple?
should you staple?
should they staple? 	should I be stapling?
should you be stapling?
should he be stapling?
should we be stapling?
should you be stapling?
should they be stapling? 	should I have stapled?
should you have stapled?
should he have stapled?
should we have stapled?
should you have stapled?
should they have stapled? 	should I have been stapling?
should you have been stapling?
should he have been stapling?
should we have been stapling?
should you have been stapling?
should they have been stapling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I staple?
shouldn't you staple?
shouldn't he staple?
shouldn't we staple?
shouldn't you staple?
shouldn't they staple? 	shouldn't I be stapling?
shouldn't you be stapling?
shouldn't he be stapling?
shouldn't we be stapling?
shouldn't you be stapling?
shouldn't they be stapling? 	shouldn't I have stapled?
shouldn't you have stapled?
shouldn't he have stapled?
shouldn't we have stapled?
shouldn't you have stapled?
shouldn't they have stapled? 	shouldn't I have been stapling?
shouldn't you have been stapling?
shouldn't he have been stapling?
shouldn't we have been stapling?
shouldn't you have been stapling?
shouldn't they have been stapling?