I should step you should step he should step we should step you should step they should step
V-ing form
I should be stepping you should be stepping he should be stepping we should be stepping you should be stepping they should be stepping
Perfect
I should have stepped you should have stepped he should have stepped we should have stepped you should have stepped they should have stepped
V-ing perfect
I should have been stepping you should have been stepping he should have been stepping we should have been stepping you should have been stepping they should have been stepping
Negation
Simple form
I should not step you should not step he should not step we should not step you should not step they should not step
V-ing form
I should not be stepping you should not be stepping he should not be stepping we should not be stepping you should not be stepping they should not be stepping
Perfect
I should not have stepped you should not have stepped he should not have stepped we should not have stepped you should not have stepped they should not have stepped
V-ing perfect
I should not have been stepping you should not have been stepping he should not have been stepping we should not have been stepping you should not have been stepping they should not have been stepping
Interrogative form
Simple form
should I step? should you step? should he step? should we step? should you step? should they step?
V-ing form
should I be stepping? should you be stepping? should he be stepping? should we be stepping? should you be stepping? should they be stepping?
Perfect
should I have stepped? should you have stepped? should he have stepped? should we have stepped? should you have stepped? should they have stepped?
V-ing perfect
should I have been stepping? should you have been stepping? should he have been stepping? should we have been stepping? should you have been stepping? should they have been stepping?
Interro-negative form
Simple form
should I not step? should you not step? should he not step? should we not step? should you not step? should they not step?
V-ing form
should I not be stepping? should you not be stepping? should he not be stepping? should we not be stepping? should you not be stepping? should they not be stepping?
Perfect
should I not have stepped? should you not have stepped? should he not have stepped? should we not have stepped? should you not have stepped? should they not have stepped?
V-ing perfect
should I not have been stepping? should you not have been stepping? should he not have been stepping? should we not have been stepping? should you not have been stepping? should they not have been stepping?