English verb conjugation
MUST METATHESISE

Regular verb: metathesise - metathesised - metathesised

Affirmation

Simple form	V-ing form
I must metathesise you must metathesise he must metathesise we must metathesise you must metathesise they must metathesise	I must be metathesising you must be metathesising he must be metathesising we must be metathesising you must be metathesising they must be metathesising
Perfect	V-ing perfect
I must have metathesised you must have metathesised he must have metathesised we must have metathesised you must have metathesised they must have metathesised	I must have been metathesising you must have been metathesising he must have been metathesising we must have been metathesising you must have been metathesising they must have been metathesising

Negation

Simple form	V-ing form
I mustn't metathesise you mustn't metathesise he mustn't metathesise we mustn't metathesise you mustn't metathesise they mustn't metathesise	I mustn't be metathesising you mustn't be metathesising he mustn't be metathesising we mustn't be metathesising you mustn't be metathesising they mustn't be metathesising
Perfect	V-ing perfect
I mustn't have metathesised you mustn't have metathesised he mustn't have metathesised we mustn't have metathesised you mustn't have metathesised they mustn't have metathesised	I mustn't have been metathesising you mustn't have been metathesising he mustn't have been metathesising we mustn't have been metathesising you mustn't have been metathesising they mustn't have been metathesising

Interrogative form

Simple form	V-ing form
must I metathesise? must you metathesise? must he metathesise? must we metathesise? must you metathesise? must they metathesise?	must I be metathesising? must you be metathesising? must he be metathesising? must we be metathesising? must you be metathesising? must they be metathesising?
Perfect	V-ing perfect
must I have metathesised? must you have metathesised? must he have metathesised? must we have metathesised? must you have metathesised? must they have metathesised?	must I have been metathesising? must you have been metathesising? must he have been metathesising? must we have been metathesising? must you have been metathesising? must they have been metathesising?

Interro-negative form

Simple form	V-ing form
mustn't I metathesise? mustn't you metathesise? mustn't he metathesise? mustn't we metathesise? mustn't you metathesise? mustn't they metathesise?	mustn't I be metathesising? mustn't you be metathesising? mustn't he be metathesising? mustn't we be metathesising? mustn't you be metathesising? mustn't they be metathesising?
Perfect	V-ing perfect
mustn't I have metathesised? mustn't you have metathesised? mustn't he have metathesised? mustn't we have metathesised? mustn't you have metathesised? mustn't they have metathesised?	mustn't I have been metathesising? mustn't you have been metathesising? mustn't he have been metathesising? mustn't we have been metathesising? mustn't you have been metathesising? mustn't they have been metathesising?