I may attack you may attack he may attack we may attack you may attack they may attack
V-ing form
I may be attacking you may be attacking he may be attacking we may be attacking you may be attacking they may be attacking
Perfect
I may have attacked you may have attacked he may have attacked we may have attacked you may have attacked they may have attacked
V-ing perfect
I may have been attacking you may have been attacking he may have been attacking we may have been attacking you may have been attacking they may have been attacking
Negation
Simple form
I may not attack you may not attack he may not attack we may not attack you may not attack they may not attack
V-ing form
I may not be attacking you may not be attacking he may not be attacking we may not be attacking you may not be attacking they may not be attacking
Perfect
I may not have attacked you may not have attacked he may not have attacked we may not have attacked you may not have attacked they may not have attacked
V-ing perfect
I may not have been attacking you may not have been attacking he may not have been attacking we may not have been attacking you may not have been attacking they may not have been attacking
Interrogative form
Simple form
may I attack? may you attack? may he attack? may we attack? may you attack? may they attack?
V-ing form
may I be attacking? may you be attacking? may he be attacking? may we be attacking? may you be attacking? may they be attacking?
Perfect
may I have attacked? may you have attacked? may he have attacked? may we have attacked? may you have attacked? may they have attacked?
V-ing perfect
may I have been attacking? may you have been attacking? may he have been attacking? may we have been attacking? may you have been attacking? may they have been attacking?
Interro-negative form
Simple form
may I not attack? may you not attack? may he not attack? may we not attack? may you not attack? may they not attack?
V-ing form
may I not be attacking? may you not be attacking? may he not be attacking? may we not be attacking? may you not be attacking? may they not be attacking?
Perfect
may I not have attacked? may you not have attacked? may he not have attacked? may we not have attacked? may you not have attacked? may they not have attacked?
V-ing perfect
may I not have been attacking? may you not have been attacking? may he not have been attacking? may we not have been attacking? may you not have been attacking? may they not have been attacking?