should surround
Regular verb: surround - surrounded- surrounded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should surround
you should surround
he should surround
we should surround
you should surround
they should surround 	I should be surrounding
you should be surrounding
he should be surrounding
we should be surrounding
you should be surrounding
they should be surrounding	I should have surrounded
you should have surrounded
he should have surrounded
we should have surrounded
you should have surrounded
they should have surrounded	I should have been surrounding
you should have been surrounding
he should have been surrounding
we should have been surrounding
you should have been surrounding
they should have been surrounding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not surround
you should not surround
he should not surround
we should not surround
you should not surround
they should not surround 	I should not be surrounding
you should not be surrounding
he should not be surrounding
we should not be surrounding
you should not be surrounding
they should not be surrounding	I should not have surrounded
you should not have surrounded
he should not have surrounded
we should not have surrounded
you should not have surrounded
they should not have surrounded	I should not have been surrounding
you should not have been surrounding
he should not have been surrounding
we should not have been surrounding
you should not have been surrounding
they should not have been surrounding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I surround?
should you surround?
should he surround?
should we surround?
should you surround?
should they surround? 	should I be surrounding?
should you be surrounding?
should he be surrounding?
should we be surrounding?
should you be surrounding?
should they be surrounding? 	should I have surrounded?
should you have surrounded?
should he have surrounded?
should we have surrounded?
should you have surrounded?
should they have surrounded? 	should I have been surrounding?
should you have been surrounding?
should he have been surrounding?
should we have been surrounding?
should you have been surrounding?
should they have been surrounding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not surround?
should you not surround?
should he not surround?
should we not surround?
should you not surround?
should they not surround? 	should I not be surrounding?
should you not be surrounding?
should he not be surrounding?
should we not be surrounding?
should you not be surrounding?
should they not be surrounding? 	should I not have surrounded?
should you not have surrounded?
should he not have surrounded?
should we not have surrounded?
should you not have surrounded?
should they not have surrounded? 	should I not have been surrounding?
should you not have been surrounding?
should he not have been surrounding?
should we not have been surrounding?
should you not have been surrounding?
should they not have been surrounding?