should shadow
Regular verb: shadow - shadowed- shadowed

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not shadow
you should not shadow
he should not shadow
we should not shadow
you should not shadow
they should not shadow 	I should not be shadowing
you should not be shadowing
he should not be shadowing
we should not be shadowing
you should not be shadowing
they should not be shadowing	I should not have shadowed
you should not have shadowed
he should not have shadowed
we should not have shadowed
you should not have shadowed
they should not have shadowed	I should not have been shadowing
you should not have been shadowing
he should not have been shadowing
we should not have been shadowing
you should not have been shadowing
they should not 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 	
should I not shadow?
should you not shadow?
should he not shadow?
should we not shadow?
should you not shadow?
should they not shadow? 	should I not be shadowing?
should you not be shadowing?
should he not be shadowing?
should we not be shadowing?
should you not be shadowing?
should they not be shadowing? 	should I not have shadowed?
should you not have shadowed?
should he not have shadowed?
should we not have shadowed?
should you not have shadowed?
should they not have shadowed? 	should I not have been shadowing?
should you not have been shadowing?
should he not have been shadowing?
should we not have been shadowing?
should you not have been shadowing?
should they not have been shadowing?