should cackle
Regular verb: cackle - cackled- cackled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd cackle
you'd cackle
he'd cackle
we'd cackle
you'd cackle
they'd cackle 	I'd be cackling
you'd be cackling
he'd be cackling
we'd be cackling
you'd be cackling
they'd be cackling	I should've cackled
you should've cackled
he should've cackled
we should've cackled
you should've cackled
they should've cackled	I should've been cackling
you should've been cackling
he should've been cackling
we should've been cackling
you should've been cackling
they should've been cackling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't cackle
you shouldn't cackle
he shouldn't cackle
we shouldn't cackle
you shouldn't cackle
they shouldn't cackle 	I shouldn't be cackling
you shouldn't be cackling
he shouldn't be cackling
we shouldn't be cackling
you shouldn't be cackling
they shouldn't be cackling	I shouldn't have cackled
you shouldn't have cackled
he shouldn't have cackled
we shouldn't have cackled
you shouldn't have cackled
they shouldn't have cackled	I shouldn't have been cackling
you shouldn't have been cackling
he shouldn't have been cackling
we shouldn't have been cackling
you shouldn't have been cackling
they shouldn't have been cackling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I cackle?
should you cackle?
should he cackle?
should we cackle?
should you cackle?
should they cackle? 	should I be cackling?
should you be cackling?
should he be cackling?
should we be cackling?
should you be cackling?
should they be cackling? 	should I have cackled?
should you have cackled?
should he have cackled?
should we have cackled?
should you have cackled?
should they have cackled? 	should I have been cackling?
should you have been cackling?
should he have been cackling?
should we have been cackling?
should you have been cackling?
should they have been cackling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I cackle?
shouldn't you cackle?
shouldn't he cackle?
shouldn't we cackle?
shouldn't you cackle?
shouldn't they cackle? 	shouldn't I be cackling?
shouldn't you be cackling?
shouldn't he be cackling?
shouldn't we be cackling?
shouldn't you be cackling?
shouldn't they be cackling? 	shouldn't I have cackled?
shouldn't you have cackled?
shouldn't he have cackled?
shouldn't we have cackled?
shouldn't you have cackled?
shouldn't they have cackled? 	shouldn't I have been cackling?
shouldn't you have been cackling?
shouldn't he have been cackling?
shouldn't we have been cackling?
shouldn't you have been cackling?
shouldn't they have been cackling?