English verb conjugation
SHOULD ATTACK

Regular verb: attack - attacked - attacked

Affirmation

Simple form	V-ing form
I should attack you should attack he should attack we should attack you should attack they should attack	I should be attacking you should be attacking he should be attacking we should be attacking you should be attacking they should be attacking
Perfect	V-ing perfect
I should have attacked you should have attacked he should have attacked we should have attacked you should have attacked they should have attacked	I should have been attacking you should have been attacking he should have been attacking we should have been attacking you should have been attacking they should have been attacking

Negation

Simple form	V-ing form
I should not attack you should not attack he should not attack we should not attack you should not attack they should not attack	I should not be attacking you should not be attacking he should not be attacking we should not be attacking you should not be attacking they should not be attacking
Perfect	V-ing perfect
I should not have attacked you should not have attacked he should not have attacked we should not have attacked you should not have attacked they should not have attacked	I should not have been attacking you should not have been attacking he should not have been attacking we should not have been attacking you should not have been attacking they should not have been attacking

Interrogative form

Simple form	V-ing form
should I attack? should you attack? should he attack? should we attack? should you attack? should they attack?	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	V-ing 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?	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	V-ing form
should I not attack? should you not attack? should he not attack? should we not attack? should you not attack? should they not attack?	should I not be attacking? should you not be attacking? should he not be attacking? should we not be attacking? should you not be attacking? should they not be attacking?
Perfect	V-ing perfect
should I not have attacked? should you not have attacked? should he not have attacked? should we not have attacked? should you not have attacked? should they not have attacked?	should I not have been attacking? should you not have been attacking? should he not have been attacking? should we not have been attacking? should you not have been attacking? should they not have been attacking?