should plug
Regular verb: plug - plugged- plugged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd plug
you'd plug
she'd plug
we'd plug
you'd plug
they'd plug 	I'd be plugging
you'd be plugging
she'd be plugging
we'd be plugging
you'd be plugging
they'd be plugging	I should've plugged
you should've plugged
she should've plugged
we should've plugged
you should've plugged
they should've plugged	I should've been plugging
you should've been plugging
she should've been plugging
we should've been plugging
you should've been plugging
they should've been plugging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't plug
you shouldn't plug
she shouldn't plug
we shouldn't plug
you shouldn't plug
they shouldn't plug 	I shouldn't be plugging
you shouldn't be plugging
she shouldn't be plugging
we shouldn't be plugging
you shouldn't be plugging
they shouldn't be plugging	I shouldn't have plugged
you shouldn't have plugged
she shouldn't have plugged
we shouldn't have plugged
you shouldn't have plugged
they shouldn't have plugged	I shouldn't have been plugging
you shouldn't have been plugging
she shouldn't have been plugging
we shouldn't have been plugging
you shouldn't have been plugging
they shouldn't have been plugging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I plug?
should you plug?
should she plug?
should we plug?
should you plug?
should they plug? 	should I be plugging?
should you be plugging?
should she be plugging?
should we be plugging?
should you be plugging?
should they be plugging? 	should I have plugged?
should you have plugged?
should she have plugged?
should we have plugged?
should you have plugged?
should they have plugged? 	should I have been plugging?
should you have been plugging?
should she have been plugging?
should we have been plugging?
should you have been plugging?
should they have been plugging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I plug?
shouldn't you plug?
shouldn't she plug?
shouldn't we plug?
shouldn't you plug?
shouldn't they plug? 	shouldn't I be plugging?
shouldn't you be plugging?
shouldn't she be plugging?
shouldn't we be plugging?
shouldn't you be plugging?
shouldn't they be plugging? 	shouldn't I have plugged?
shouldn't you have plugged?
shouldn't she have plugged?
shouldn't we have plugged?
shouldn't you have plugged?
shouldn't they have plugged? 	shouldn't I have been plugging?
shouldn't you have been plugging?
shouldn't she have been plugging?
shouldn't we have been plugging?
shouldn't you have been plugging?
shouldn't they have been plugging?