may metastasise
Verbe régulier : metastasise - metastasised- metastasised

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

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

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

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