I should stab you should stab he should stab we should stab you should stab they should stab
V-ing form
I should be stabbing you should be stabbing he should be stabbing we should be stabbing you should be stabbing they should be stabbing
Perfect
I should have stabbed you should have stabbed he should have stabbed we should have stabbed you should have stabbed they should have stabbed
V-ing perfect
I should have been stabbing you should have been stabbing he should have been stabbing we should have been stabbing you should have been stabbing they should have been stabbing
Negation
Simple form
I should not stab you should not stab he should not stab we should not stab you should not stab they should not stab
V-ing form
I should not be stabbing you should not be stabbing he should not be stabbing we should not be stabbing you should not be stabbing they should not be stabbing
Perfect
I should not have stabbed you should not have stabbed he should not have stabbed we should not have stabbed you should not have stabbed they should not have stabbed
V-ing perfect
I should not have been stabbing you should not have been stabbing he should not have been stabbing we should not have been stabbing you should not have been stabbing they should not have been stabbing
Interrogative form
Simple form
should I stab? should you stab? should he stab? should we stab? should you stab? should they stab?
V-ing form
should I be stabbing? should you be stabbing? should he be stabbing? should we be stabbing? should you be stabbing? should they be stabbing?
Perfect
should I have stabbed? should you have stabbed? should he have stabbed? should we have stabbed? should you have stabbed? should they have stabbed?
V-ing perfect
should I have been stabbing? should you have been stabbing? should he have been stabbing? should we have been stabbing? should you have been stabbing? should they have been stabbing?
Interro-negative form
Simple form
should I not stab? should you not stab? should he not stab? should we not stab? should you not stab? should they not stab?
V-ing form
should I not be stabbing? should you not be stabbing? should he not be stabbing? should we not be stabbing? should you not be stabbing? should they not be stabbing?
Perfect
should I not have stabbed? should you not have stabbed? should he not have stabbed? should we not have stabbed? should you not have stabbed? should they not have stabbed?
V-ing perfect
should I not have been stabbing? should you not have been stabbing? should he not have been stabbing? should we not have been stabbing? should you not have been stabbing? should they not have been stabbing?