must metastasise
Verbe régulier : metastasise - metastasised- metastasised

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must metastasise
you must metastasise
he must metastasise
we must metastasise
you must metastasise
they must metastasise 	I must be metastasising
you must be metastasising
he must be metastasising
we must be metastasising
you must be metastasising
they must be metastasising	I must have metastasised
you must have metastasised
he 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
he must have been metastasising
we must have been metastasising
you must have been metastasising
they must have been metastasising	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't metastasise
you mustn't metastasise
he 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
he mustn't be metastasising
we mustn't be metastasising
you mustn't be metastasising
they mustn't be metastasising	I mustn't have metastasised
you mustn't have metastasised
he 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
he mustn't have been metastasising
we mustn't have been metastasising
you mustn't have been metastasising
they mustn't have been metastasising	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I metastasise?
must you metastasise?
must he metastasise?
must we metastasise?
must you metastasise?
must they metastasise? 	must I be metastasising?
must you be metastasising?
must he be metastasising?
must we be metastasising?
must you be metastasising?
must they be metastasising? 	must I have metastasised?
must you have metastasised?
must he 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 he have been metastasising?
must we have been metastasising?
must you have been metastasising?
must they have been metastasising? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I metastasise?
mustn't you metastasise?
mustn't he 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 he be metastasising?
mustn't we be metastasising?
mustn't you be metastasising?
mustn't they be metastasising? 	mustn't I have metastasised?
mustn't you have metastasised?
mustn't he 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 he have been metastasising?
mustn't we have been metastasising?
mustn't you have been metastasising?
mustn't they have been metastasising?