should plague
Regular verb: plague - plagued- plagued

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd plague
you'd plague
she'd plague
we'd plague
you'd plague
they'd plague 	I'd be plaguing
you'd be plaguing
she'd be plaguing
we'd be plaguing
you'd be plaguing
they'd be plaguing	I should've plagued
you should've plagued
she should've plagued
we should've plagued
you should've plagued
they should've plagued	I should've been plaguing
you should've been plaguing
she should've been plaguing
we should've been plaguing
you should've been plaguing
they should've been plaguing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't plague
you shouldn't plague
she shouldn't plague
we shouldn't plague
you shouldn't plague
they shouldn't plague 	I shouldn't be plaguing
you shouldn't be plaguing
she shouldn't be plaguing
we shouldn't be plaguing
you shouldn't be plaguing
they shouldn't be plaguing	I shouldn't have plagued
you shouldn't have plagued
she shouldn't have plagued
we shouldn't have plagued
you shouldn't have plagued
they shouldn't have plagued	I shouldn't have been plaguing
you shouldn't have been plaguing
she shouldn't have been plaguing
we shouldn't have been plaguing
you shouldn't have been plaguing
they shouldn't have been plaguing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I plague?
should you plague?
should she plague?
should we plague?
should you plague?
should they plague? 	should I be plaguing?
should you be plaguing?
should she be plaguing?
should we be plaguing?
should you be plaguing?
should they be plaguing? 	should I have plagued?
should you have plagued?
should she have plagued?
should we have plagued?
should you have plagued?
should they have plagued? 	should I have been plaguing?
should you have been plaguing?
should she have been plaguing?
should we have been plaguing?
should you have been plaguing?
should they have been plaguing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I plague?
shouldn't you plague?
shouldn't she plague?
shouldn't we plague?
shouldn't you plague?
shouldn't they plague? 	shouldn't I be plaguing?
shouldn't you be plaguing?
shouldn't she be plaguing?
shouldn't we be plaguing?
shouldn't you be plaguing?
shouldn't they be plaguing? 	shouldn't I have plagued?
shouldn't you have plagued?
shouldn't she have plagued?
shouldn't we have plagued?
shouldn't you have plagued?
shouldn't they have plagued? 	shouldn't I have been plaguing?
shouldn't you have been plaguing?
shouldn't she have been plaguing?
shouldn't we have been plaguing?
shouldn't you have been plaguing?
shouldn't they have been plaguing?