should surface
Regular verb: surface - surfaced- surfaced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should surface
you should surface
she should surface
we should surface
you should surface
they should surface 	I should be surfacing
you should be surfacing
she should be surfacing
we should be surfacing
you should be surfacing
they should be surfacing	I should have surfaced
you should have surfaced
she should have surfaced
we should have surfaced
you should have surfaced
they should have surfaced	I should have been surfacing
you should have been surfacing
she should have been surfacing
we should have been surfacing
you should have been surfacing
they should have been surfacing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not surface
you should not surface
she should not surface
we should not surface
you should not surface
they should not surface 	I should not be surfacing
you should not be surfacing
she should not be surfacing
we should not be surfacing
you should not be surfacing
they should not be surfacing	I should not have surfaced
you should not have surfaced
she should not have surfaced
we should not have surfaced
you should not have surfaced
they should not have surfaced	I should not have been surfacing
you should not have been surfacing
she should not have been surfacing
we should not have been surfacing
you should not have been surfacing
they should not have been surfacing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I surface?
should you surface?
should she surface?
should we surface?
should you surface?
should they surface? 	should I be surfacing?
should you be surfacing?
should she be surfacing?
should we be surfacing?
should you be surfacing?
should they be surfacing? 	should I have surfaced?
should you have surfaced?
should she have surfaced?
should we have surfaced?
should you have surfaced?
should they have surfaced? 	should I have been surfacing?
should you have been surfacing?
should she have been surfacing?
should we have been surfacing?
should you have been surfacing?
should they have been surfacing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not surface?
should you not surface?
should she not surface?
should we not surface?
should you not surface?
should they not surface? 	should I not be surfacing?
should you not be surfacing?
should she not be surfacing?
should we not be surfacing?
should you not be surfacing?
should they not be surfacing? 	should I not have surfaced?
should you not have surfaced?
should she not have surfaced?
should we not have surfaced?
should you not have surfaced?
should they not have surfaced? 	should I not have been surfacing?
should you not have been surfacing?
should she not have been surfacing?
should we not have been surfacing?
should you not have been surfacing?
should they not have been surfacing?