I should chew you should chew he should chew we should chew you should chew they should chew
V-ing form
I should be chewing you should be chewing he should be chewing we should be chewing you should be chewing they should be chewing
Perfect
I should have chewed you should have chewed he should have chewed we should have chewed you should have chewed they should have chewed
V-ing perfect
I should have been chewing you should have been chewing he should have been chewing we should have been chewing you should have been chewing they should have been chewing
Negation
Simple form
I should not chew you should not chew he should not chew we should not chew you should not chew they should not chew
V-ing form
I should not be chewing you should not be chewing he should not be chewing we should not be chewing you should not be chewing they should not be chewing
Perfect
I should not have chewed you should not have chewed he should not have chewed we should not have chewed you should not have chewed they should not have chewed
V-ing perfect
I should not have been chewing you should not have been chewing he should not have been chewing we should not have been chewing you should not have been chewing they should not have been chewing
Interrogative form
Simple form
should I chew? should you chew? should he chew? should we chew? should you chew? should they chew?
V-ing form
should I be chewing? should you be chewing? should he be chewing? should we be chewing? should you be chewing? should they be chewing?
Perfect
should I have chewed? should you have chewed? should he have chewed? should we have chewed? should you have chewed? should they have chewed?
V-ing perfect
should I have been chewing? should you have been chewing? should he have been chewing? should we have been chewing? should you have been chewing? should they have been chewing?
Interro-negative form
Simple form
should I not chew? should you not chew? should he not chew? should we not chew? should you not chew? should they not chew?
V-ing form
should I not be chewing? should you not be chewing? should he not be chewing? should we not be chewing? should you not be chewing? should they not be chewing?
Perfect
should I not have chewed? should you not have chewed? should he not have chewed? should we not have chewed? should you not have chewed? should they not have chewed?
V-ing perfect
should I not have been chewing? should you not have been chewing? should he not have been chewing? should we not have been chewing? should you not have been chewing? should they not have been chewing?