I must advertise you must advertise she must advertise we must advertise you must advertise they must advertise
V-ing form
I must be advertising you must be advertising she must be advertising we must be advertising you must be advertising they must be advertising
Perfect
I must have advertised you must have advertised she must have advertised we must have advertised you must have advertised they must have advertised
V-ing perfect
I must have been advertising you must have been advertising she must have been advertising we must have been advertising you must have been advertising they must have been advertising
Negation
Simple form
I must not advertise you must not advertise she must not advertise we must not advertise you must not advertise they must not advertise
V-ing form
I must not be advertising you must not be advertising she must not be advertising we must not be advertising you must not be advertising they must not be advertising
Perfect
I must not have advertised you must not have advertised she must not have advertised we must not have advertised you must not have advertised they must not have advertised
V-ing perfect
I must not have been advertising you must not have been advertising she must not have been advertising we must not have been advertising you must not have been advertising they must not have been advertising
Interrogative form
Simple form
must I advertise? must you advertise? must she advertise? must we advertise? must you advertise? must they advertise?
V-ing form
must I be advertising? must you be advertising? must she be advertising? must we be advertising? must you be advertising? must they be advertising?
Perfect
must I have advertised? must you have advertised? must she have advertised? must we have advertised? must you have advertised? must they have advertised?
V-ing perfect
must I have been advertising? must you have been advertising? must she have been advertising? must we have been advertising? must you have been advertising? must they have been advertising?
Interro-negative form
Simple form
must I not advertise? must you not advertise? must she not advertise? must we not advertise? must you not advertise? must they not advertise?
V-ing form
must I not be advertising? must you not be advertising? must she not be advertising? must we not be advertising? must you not be advertising? must they not be advertising?
Perfect
must I not have advertised? must you not have advertised? must she not have advertised? must we not have advertised? must you not have advertised? must they not have advertised?
V-ing perfect
must I not have been advertising? must you not have been advertising? must she not have been advertising? must we not have been advertising? must you not have been advertising? must they not have been advertising?