English verb conjugation
SHOULD ATTACK

Regular verb: attack - attacked - attacked

Affirmation

Simple form	V-ing form
I'd attack you'd attack she'd attack we'd attack you'd attack they'd attack	I'd be attacking you'd be attacking she'd be attacking we'd be attacking you'd be attacking they'd be attacking
Perfect	V-ing perfect
I should've attacked you should've attacked she should've attacked we should've attacked you should've attacked they should've attacked	I should've been attacking you should've been attacking she should've been attacking we should've been attacking you should've been attacking they should've been attacking

Negation

Simple form	V-ing form
I shouldn't attack you shouldn't attack she shouldn't attack we shouldn't attack you shouldn't attack they shouldn't attack	I shouldn't be attacking you shouldn't be attacking she shouldn't be attacking we shouldn't be attacking you shouldn't be attacking they shouldn't be attacking
Perfect	V-ing perfect
I shouldn't have attacked you shouldn't have attacked she shouldn't have attacked we shouldn't have attacked you shouldn't have attacked they shouldn't have attacked	I shouldn't have been attacking you shouldn't have been attacking she 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	V-ing form
should I attack? should you attack? should she attack? should we attack? should you attack? should they attack?	should I be attacking? should you be attacking? should she be attacking? should we be attacking? should you be attacking? should they be attacking?
Perfect	V-ing perfect
should I have attacked? should you have attacked? should she have attacked? should we have attacked? should you have attacked? should they have attacked?	should I have been attacking? should you have been attacking? should she have been attacking? should we have been attacking? should you have been attacking? should they have been attacking?

Interro-negative form

Simple form	V-ing form
shouldn't I attack? shouldn't you attack? shouldn't she attack? shouldn't we attack? shouldn't you attack? shouldn't they attack?	shouldn't I be attacking? shouldn't you be attacking? shouldn't she be attacking? shouldn't we be attacking? shouldn't you be attacking? shouldn't they be attacking?
Perfect	V-ing perfect
shouldn't I have attacked? shouldn't you have attacked? shouldn't she have attacked? shouldn't we have attacked? shouldn't you have attacked? shouldn't they have attacked?	shouldn't I have been attacking? shouldn't you have been attacking? shouldn't she have been attacking? shouldn't we have been attacking? shouldn't you have been attacking? shouldn't they have been attacking?