English verb conjugation
MAY METASTASISE

Regular verb: metastasise - metastasised - metastasised

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?