I should mix you should mix he should mix we should mix you should mix they should mix
V-ing form
I should be mixing you should be mixing he should be mixing we should be mixing you should be mixing they should be mixing
Perfect
I should have mixed you should have mixed he should have mixed we should have mixed you should have mixed they should have mixed
V-ing perfect
I should have been mixing you should have been mixing he should have been mixing we should have been mixing you should have been mixing they should have been mixing
Negation
Simple form
I should not mix you should not mix he should not mix we should not mix you should not mix they should not mix
V-ing form
I should not be mixing you should not be mixing he should not be mixing we should not be mixing you should not be mixing they should not be mixing
Perfect
I should not have mixed you should not have mixed he should not have mixed we should not have mixed you should not have mixed they should not have mixed
V-ing perfect
I should not have been mixing you should not have been mixing he should not have been mixing we should not have been mixing you should not have been mixing they should not have been mixing
Interrogative form
Simple form
should I mix? should you mix? should he mix? should we mix? should you mix? should they mix?
V-ing form
should I be mixing? should you be mixing? should he be mixing? should we be mixing? should you be mixing? should they be mixing?
Perfect
should I have mixed? should you have mixed? should he have mixed? should we have mixed? should you have mixed? should they have mixed?
V-ing perfect
should I have been mixing? should you have been mixing? should he have been mixing? should we have been mixing? should you have been mixing? should they have been mixing?
Interro-negative form
Simple form
should I not mix? should you not mix? should he not mix? should we not mix? should you not mix? should they not mix?
V-ing form
should I not be mixing? should you not be mixing? should he not be mixing? should we not be mixing? should you not be mixing? should they not be mixing?
Perfect
should I not have mixed? should you not have mixed? should he not have mixed? should we not have mixed? should you not have mixed? should they not have mixed?
V-ing perfect
should I not have been mixing? should you not have been mixing? should he not have been mixing? should we not have been mixing? should you not have been mixing? should they not have been mixing?