English verb conjugation
MUST METASTASISE

Regular verb: metastasise - metastasised - metastasised

Affirmation

Simple form	V-ing form
I must metastasise you must metastasise she must metastasise we must metastasise you must metastasise they must metastasise	I must be metastasising you must be metastasising she must be metastasising we must be metastasising you must be metastasising they must be metastasising
Perfect	V-ing perfect
I must have metastasised you must have metastasised she must have metastasised we must have metastasised you must have metastasised they must have metastasised	I must have been metastasising you must have been metastasising she must have been metastasising we must have been metastasising you must have been metastasising they must have been metastasising

Negation

Simple form	V-ing form
I mustn't metastasise you mustn't metastasise she mustn't metastasise we mustn't metastasise you mustn't metastasise they mustn't metastasise	I mustn't be metastasising you mustn't be metastasising she mustn't be metastasising we mustn't be metastasising you mustn't be metastasising they mustn't be metastasising
Perfect	V-ing perfect
I mustn't have metastasised you mustn't have metastasised she mustn't have metastasised we mustn't have metastasised you mustn't have metastasised they mustn't have metastasised	I mustn't have been metastasising you mustn't have been metastasising she mustn't have been metastasising we mustn't have been metastasising you mustn't have been metastasising they mustn't have been metastasising

Interrogative form

Simple form	V-ing form
must I metastasise? must you metastasise? must she metastasise? must we metastasise? must you metastasise? must they metastasise?	must I be metastasising? must you be metastasising? must she be metastasising? must we be metastasising? must you be metastasising? must they be metastasising?
Perfect	V-ing perfect
must I have metastasised? must you have metastasised? must she have metastasised? must we have metastasised? must you have metastasised? must they have metastasised?	must I have been metastasising? must you have been metastasising? must she have been metastasising? must we have been metastasising? must you have been metastasising? must they have been metastasising?

Interro-negative form

Simple form	V-ing form
mustn't I metastasise? mustn't you metastasise? mustn't she metastasise? mustn't we metastasise? mustn't you metastasise? mustn't they metastasise?	mustn't I be metastasising? mustn't you be metastasising? mustn't she be metastasising? mustn't we be metastasising? mustn't you be metastasising? mustn't they be metastasising?
Perfect	V-ing perfect
mustn't I have metastasised? mustn't you have metastasised? mustn't she have metastasised? mustn't we have metastasised? mustn't you have metastasised? mustn't they have metastasised?	mustn't I have been metastasising? mustn't you have been metastasising? mustn't she have been metastasising? mustn't we have been metastasising? mustn't you have been metastasising? mustn't they have been metastasising?