I must metathesise you must metathesise she must metathesise we must metathesise you must metathesise they must metathesise
V-ing form
I must be metathesising you must be metathesising she must be metathesising we must be metathesising you must be metathesising they must be metathesising
Perfect
I must have metathesised you must have metathesised she must have metathesised we must have metathesised you must have metathesised they must have metathesised
V-ing perfect
I must have been metathesising you must have been metathesising she must have been metathesising we must have been metathesising you must have been metathesising they must have been metathesising
Negation
Simple form
I must not metathesise you must not metathesise she must not metathesise we must not metathesise you must not metathesise they must not metathesise
V-ing form
I must not be metathesising you must not be metathesising she must not be metathesising we must not be metathesising you must not be metathesising they must not be metathesising
Perfect
I must not have metathesised you must not have metathesised she must not have metathesised we must not have metathesised you must not have metathesised they must not have metathesised
V-ing perfect
I must not have been metathesising you must not have been metathesising she must not have been metathesising we must not have been metathesising you must not have been metathesising they must not have been metathesising
Interrogative form
Simple form
must I metathesise? must you metathesise? must she metathesise? must we metathesise? must you metathesise? must they metathesise?
V-ing form
must I be metathesising? must you be metathesising? must she be metathesising? must we be metathesising? must you be metathesising? must they be metathesising?
Perfect
must I have metathesised? must you have metathesised? must she have metathesised? must we have metathesised? must you have metathesised? must they have metathesised?
V-ing perfect
must I have been metathesising? must you have been metathesising? must she have been metathesising? must we have been metathesising? must you have been metathesising? must they have been metathesising?
Interro-negative form
Simple form
must I not metathesise? must you not metathesise? must she not metathesise? must we not metathesise? must you not metathesise? must they not metathesise?
V-ing form
must I not be metathesising? must you not be metathesising? must she not be metathesising? must we not be metathesising? must you not be metathesising? must they not be metathesising?
Perfect
must I not have metathesised? must you not have metathesised? must she not have metathesised? must we not have metathesised? must you not have metathesised? must they not have metathesised?
V-ing perfect
must I not have been metathesising? must you not have been metathesising? must she not have been metathesising? must we not have been metathesising? must you not have been metathesising? must they not have been metathesising?