should abbreviate
Regular verb: abbreviate - abbreviated- abbreviated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd abbreviate
you'd abbreviate
he'd abbreviate
we'd abbreviate
you'd abbreviate
they'd abbreviate 	I'd be abbreviating
you'd be abbreviating
he'd be abbreviating
we'd be abbreviating
you'd be abbreviating
they'd be abbreviating	I should've abbreviated
you should've abbreviated
he should've abbreviated
we should've abbreviated
you should've abbreviated
they should've abbreviated	I should've been abbreviating
you should've been abbreviating
he should've been abbreviating
we should've been abbreviating
you should've been abbreviating
they should've been abbreviating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't abbreviate
you shouldn't abbreviate
he shouldn't abbreviate
we shouldn't abbreviate
you shouldn't abbreviate
they shouldn't abbreviate 	I shouldn't be abbreviating
you shouldn't be abbreviating
he shouldn't be abbreviating
we shouldn't be abbreviating
you shouldn't be abbreviating
they shouldn't be abbreviating	I shouldn't have abbreviated
you shouldn't have abbreviated
he shouldn't have abbreviated
we shouldn't have abbreviated
you shouldn't have abbreviated
they shouldn't have abbreviated	I shouldn't have been abbreviating
you shouldn't have been abbreviating
he shouldn't have been abbreviating
we shouldn't have been abbreviating
you shouldn't have been abbreviating
they shouldn't have been abbreviating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I abbreviate?
should you abbreviate?
should he abbreviate?
should we abbreviate?
should you abbreviate?
should they abbreviate? 	should I be abbreviating?
should you be abbreviating?
should he be abbreviating?
should we be abbreviating?
should you be abbreviating?
should they be abbreviating? 	should I have abbreviated?
should you have abbreviated?
should he have abbreviated?
should we have abbreviated?
should you have abbreviated?
should they have abbreviated? 	should I have been abbreviating?
should you have been abbreviating?
should he have been abbreviating?
should we have been abbreviating?
should you have been abbreviating?
should they have been abbreviating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I abbreviate?
shouldn't you abbreviate?
shouldn't he abbreviate?
shouldn't we abbreviate?
shouldn't you abbreviate?
shouldn't they abbreviate? 	shouldn't I be abbreviating?
shouldn't you be abbreviating?
shouldn't he be abbreviating?
shouldn't we be abbreviating?
shouldn't you be abbreviating?
shouldn't they be abbreviating? 	shouldn't I have abbreviated?
shouldn't you have abbreviated?
shouldn't he have abbreviated?
shouldn't we have abbreviated?
shouldn't you have abbreviated?
shouldn't they have abbreviated? 	shouldn't I have been abbreviating?
shouldn't you have been abbreviating?
shouldn't he have been abbreviating?
shouldn't we have been abbreviating?
shouldn't you have been abbreviating?
shouldn't they have been abbreviating?