should prewarm
Regular verb: prewarm - prewarmed- prewarmed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should prewarm
you should prewarm
he should prewarm
we should prewarm
you should prewarm
they should prewarm 	I should be prewarming
you should be prewarming
he should be prewarming
we should be prewarming
you should be prewarming
they should be prewarming	I should have prewarmed
you should have prewarmed
he should have prewarmed
we should have prewarmed
you should have prewarmed
they should have prewarmed	I should have been prewarming
you should have been prewarming
he should have been prewarming
we should have been prewarming
you should have been prewarming
they should have been prewarming	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not prewarm
you should not prewarm
he should not prewarm
we should not prewarm
you should not prewarm
they should not prewarm 	I should not be prewarming
you should not be prewarming
he should not be prewarming
we should not be prewarming
you should not be prewarming
they should not be prewarming	I should not have prewarmed
you should not have prewarmed
he should not have prewarmed
we should not have prewarmed
you should not have prewarmed
they should not have prewarmed	I should not have been prewarming
you should not have been prewarming
he should not have been prewarming
we should not have been prewarming
you should not have been prewarming
they should not have been prewarming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I prewarm?
should you prewarm?
should he prewarm?
should we prewarm?
should you prewarm?
should they prewarm? 	should I be prewarming?
should you be prewarming?
should he be prewarming?
should we be prewarming?
should you be prewarming?
should they be prewarming? 	should I have prewarmed?
should you have prewarmed?
should he have prewarmed?
should we have prewarmed?
should you have prewarmed?
should they have prewarmed? 	should I have been prewarming?
should you have been prewarming?
should he have been prewarming?
should we have been prewarming?
should you have been prewarming?
should they have been prewarming? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not prewarm?
should you not prewarm?
should he not prewarm?
should we not prewarm?
should you not prewarm?
should they not prewarm? 	should I not be prewarming?
should you not be prewarming?
should he not be prewarming?
should we not be prewarming?
should you not be prewarming?
should they not be prewarming? 	should I not have prewarmed?
should you not have prewarmed?
should he not have prewarmed?
should we not have prewarmed?
should you not have prewarmed?
should they not have prewarmed? 	should I not have been prewarming?
should you not have been prewarming?
should he not have been prewarming?
should we not have been prewarming?
should you not have been prewarming?
should they not have been prewarming?