should shadow
Regular verb: shadow - shadowed- shadowed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd shadow
you'd shadow
he'd shadow
we'd shadow
you'd shadow
they'd shadow 	I'd be shadowing
you'd be shadowing
he'd be shadowing
we'd be shadowing
you'd be shadowing
they'd be shadowing	I should've shadowed
you should've shadowed
he should've shadowed
we should've shadowed
you should've shadowed
they should've shadowed	I should've been shadowing
you should've been shadowing
he should've been shadowing
we should've been shadowing
you should've been shadowing
they should've been shadowing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't shadow
you shouldn't shadow
he shouldn't shadow
we shouldn't shadow
you shouldn't shadow
they shouldn't shadow 	I shouldn't be shadowing
you shouldn't be shadowing
he shouldn't be shadowing
we shouldn't be shadowing
you shouldn't be shadowing
they shouldn't be shadowing	I shouldn't have shadowed
you shouldn't have shadowed
he shouldn't have shadowed
we shouldn't have shadowed
you shouldn't have shadowed
they shouldn't have shadowed	I shouldn't have been shadowing
you shouldn't have been shadowing
he shouldn't have been shadowing
we shouldn't have been shadowing
you shouldn't have been shadowing
they shouldn't have been shadowing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I shadow?
should you shadow?
should he shadow?
should we shadow?
should you shadow?
should they shadow? 	should I be shadowing?
should you be shadowing?
should he be shadowing?
should we be shadowing?
should you be shadowing?
should they be shadowing? 	should I have shadowed?
should you have shadowed?
should he have shadowed?
should we have shadowed?
should you have shadowed?
should they have shadowed? 	should I have been shadowing?
should you have been shadowing?
should he have been shadowing?
should we have been shadowing?
should you have been shadowing?
should they have been shadowing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I shadow?
shouldn't you shadow?
shouldn't he shadow?
shouldn't we shadow?
shouldn't you shadow?
shouldn't they shadow? 	shouldn't I be shadowing?
shouldn't you be shadowing?
shouldn't he be shadowing?
shouldn't we be shadowing?
shouldn't you be shadowing?
shouldn't they be shadowing? 	shouldn't I have shadowed?
shouldn't you have shadowed?
shouldn't he have shadowed?
shouldn't we have shadowed?
shouldn't you have shadowed?
shouldn't they have shadowed? 	shouldn't I have been shadowing?
shouldn't you have been shadowing?
shouldn't he have been shadowing?
shouldn't we have been shadowing?
shouldn't you have been shadowing?
shouldn't they have been shadowing?