should calk
Regular verb: calk - calked- calked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd calk
you'd calk
he'd calk
we'd calk
you'd calk
they'd calk 	I'd be calking
you'd be calking
he'd be calking
we'd be calking
you'd be calking
they'd be calking	I should've calked
you should've calked
he should've calked
we should've calked
you should've calked
they should've calked	I should've been calking
you should've been calking
he should've been calking
we should've been calking
you should've been calking
they should've been calking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't calk
you shouldn't calk
he shouldn't calk
we shouldn't calk
you shouldn't calk
they shouldn't calk 	I shouldn't be calking
you shouldn't be calking
he shouldn't be calking
we shouldn't be calking
you shouldn't be calking
they shouldn't be calking	I shouldn't have calked
you shouldn't have calked
he shouldn't have calked
we shouldn't have calked
you shouldn't have calked
they shouldn't have calked	I shouldn't have been calking
you shouldn't have been calking
he shouldn't have been calking
we shouldn't have been calking
you shouldn't have been calking
they shouldn't have been calking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I calk?
should you calk?
should he calk?
should we calk?
should you calk?
should they calk? 	should I be calking?
should you be calking?
should he be calking?
should we be calking?
should you be calking?
should they be calking? 	should I have calked?
should you have calked?
should he have calked?
should we have calked?
should you have calked?
should they have calked? 	should I have been calking?
should you have been calking?
should he have been calking?
should we have been calking?
should you have been calking?
should they have been calking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I calk?
shouldn't you calk?
shouldn't he calk?
shouldn't we calk?
shouldn't you calk?
shouldn't they calk? 	shouldn't I be calking?
shouldn't you be calking?
shouldn't he be calking?
shouldn't we be calking?
shouldn't you be calking?
shouldn't they be calking? 	shouldn't I have calked?
shouldn't you have calked?
shouldn't he have calked?
shouldn't we have calked?
shouldn't you have calked?
shouldn't they have calked? 	shouldn't I have been calking?
shouldn't you have been calking?
shouldn't he have been calking?
shouldn't we have been calking?
shouldn't you have been calking?
shouldn't they have been calking?