English verb conjugation
MAY METASTASISE

Regular verb: metastasise - metastasised - metastasised

Affirmation

Simple form	V-ing form
I may metastasise you may metastasise she may metastasise we may metastasise you may metastasise they may metastasise	I may be metastasising you may be metastasising she 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 she 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 she 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 she 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 she 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 she 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 she 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 she metastasise? may we metastasise? may you metastasise? may they metastasise?	may I be metastasising? may you be metastasising? may she 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 she 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 she 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 she 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 she 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 she 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 she have been metastasising? mayn't we have been metastasising? mayn't you have been metastasising? mayn't they have been metastasising?