I'd be attacking you'd be attacking he'd be attacking we'd be attacking you'd be attacking they'd be attacking
Perfect
I should've attacked you should've attacked he should've attacked we should've attacked you should've attacked they should've attacked
V-ing perfect
I should've been attacking you should've been attacking he should've been attacking we should've been attacking you should've been attacking they should've been attacking
Negation
Simple form
I shouldn't attack you shouldn't attack he shouldn't attack we shouldn't attack you shouldn't attack they shouldn't attack
V-ing form
I shouldn't be attacking you shouldn't be attacking he shouldn't be attacking we shouldn't be attacking you shouldn't be attacking they shouldn't be attacking
Perfect
I shouldn't have attacked you shouldn't have attacked he shouldn't have attacked we shouldn't have attacked you shouldn't have attacked they shouldn't have attacked
V-ing perfect
I shouldn't have been attacking you shouldn't have been attacking he shouldn't have been attacking we shouldn't have been attacking you shouldn't have been attacking they shouldn't have been attacking
Interrogative form
Simple form
should I attack? should you attack? should he attack? should we attack? should you attack? should they attack?
V-ing form
should I be attacking? should you be attacking? should he be attacking? should we be attacking? should you be attacking? should they be attacking?
Perfect
should I have attacked? should you have attacked? should he have attacked? should we have attacked? should you have attacked? should they have attacked?
V-ing perfect
should I have been attacking? should you have been attacking? should he have been attacking? should we have been attacking? should you have been attacking? should they have been attacking?
Interro-negative form
Simple form
shouldn't I attack? shouldn't you attack? shouldn't he attack? shouldn't we attack? shouldn't you attack? shouldn't they attack?
V-ing form
shouldn't I be attacking? shouldn't you be attacking? shouldn't he be attacking? shouldn't we be attacking? shouldn't you be attacking? shouldn't they be attacking?
Perfect
shouldn't I have attacked? shouldn't you have attacked? shouldn't he have attacked? shouldn't we have attacked? shouldn't you have attacked? shouldn't they have attacked?
V-ing perfect
shouldn't I have been attacking? shouldn't you have been attacking? shouldn't he have been attacking? shouldn't we have been attacking? shouldn't you have been attacking? shouldn't they have been attacking?