I must criticise you must criticise she must criticise we must criticise you must criticise they must criticise
V-ing form
I must be criticising you must be criticising she must be criticising we must be criticising you must be criticising they must be criticising
Perfect
I must have criticised you must have criticised she must have criticised we must have criticised you must have criticised they must have criticised
V-ing perfect
I must have been criticising you must have been criticising she must have been criticising we must have been criticising you must have been criticising they must have been criticising
Negation
Simple form
I must not criticise you must not criticise she must not criticise we must not criticise you must not criticise they must not criticise
V-ing form
I must not be criticising you must not be criticising she must not be criticising we must not be criticising you must not be criticising they must not be criticising
Perfect
I must not have criticised you must not have criticised she must not have criticised we must not have criticised you must not have criticised they must not have criticised
V-ing perfect
I must not have been criticising you must not have been criticising she must not have been criticising we must not have been criticising you must not have been criticising they must not have been criticising
Interrogative form
Simple form
must I criticise? must you criticise? must she criticise? must we criticise? must you criticise? must they criticise?
V-ing form
must I be criticising? must you be criticising? must she be criticising? must we be criticising? must you be criticising? must they be criticising?
Perfect
must I have criticised? must you have criticised? must she have criticised? must we have criticised? must you have criticised? must they have criticised?
V-ing perfect
must I have been criticising? must you have been criticising? must she have been criticising? must we have been criticising? must you have been criticising? must they have been criticising?
Interro-negative form
Simple form
must I not criticise? must you not criticise? must she not criticise? must we not criticise? must you not criticise? must they not criticise?
V-ing form
must I not be criticising? must you not be criticising? must she not be criticising? must we not be criticising? must you not be criticising? must they not be criticising?
Perfect
must I not have criticised? must you not have criticised? must she not have criticised? must we not have criticised? must you not have criticised? must they not have criticised?
V-ing perfect
must I not have been criticising? must you not have been criticising? must she not have been criticising? must we not have been criticising? must you not have been criticising? must they not have been criticising?