English verb conjugation
MAY VULCANISE

Regular verb: vulcanise - vulcanised - vulcanised

Affirmation

Simple form	V-ing form
I may vulcanise you may vulcanise he may vulcanise we may vulcanise you may vulcanise they may vulcanise	I may be vulcanising you may be vulcanising he may be vulcanising we may be vulcanising you may be vulcanising they may be vulcanising
Perfect	V-ing perfect
I may have vulcanised you may have vulcanised he may have vulcanised we may have vulcanised you may have vulcanised they may have vulcanised	I may have been vulcanising you may have been vulcanising he may have been vulcanising we may have been vulcanising you may have been vulcanising they may have been vulcanising

Negation

Simple form	V-ing form
I mayn't vulcanise you mayn't vulcanise he mayn't vulcanise we mayn't vulcanise you mayn't vulcanise they mayn't vulcanise	I mayn't be vulcanising you mayn't be vulcanising he mayn't be vulcanising we mayn't be vulcanising you mayn't be vulcanising they mayn't be vulcanising
Perfect	V-ing perfect
I mayn't have vulcanised you mayn't have vulcanised he mayn't have vulcanised we mayn't have vulcanised you mayn't have vulcanised they mayn't have vulcanised	I mayn't have been vulcanising you mayn't have been vulcanising he mayn't have been vulcanising we mayn't have been vulcanising you mayn't have been vulcanising they mayn't have been vulcanising

Interrogative form

Simple form	V-ing form
may I vulcanise? may you vulcanise? may he vulcanise? may we vulcanise? may you vulcanise? may they vulcanise?	may I be vulcanising? may you be vulcanising? may he be vulcanising? may we be vulcanising? may you be vulcanising? may they be vulcanising?
Perfect	V-ing perfect
may I have vulcanised? may you have vulcanised? may he have vulcanised? may we have vulcanised? may you have vulcanised? may they have vulcanised?	may I have been vulcanising? may you have been vulcanising? may he have been vulcanising? may we have been vulcanising? may you have been vulcanising? may they have been vulcanising?

Interro-negative form

Simple form	V-ing form
mayn't I vulcanise? mayn't you vulcanise? mayn't he vulcanise? mayn't we vulcanise? mayn't you vulcanise? mayn't they vulcanise?	mayn't I be vulcanising? mayn't you be vulcanising? mayn't he be vulcanising? mayn't we be vulcanising? mayn't you be vulcanising? mayn't they be vulcanising?
Perfect	V-ing perfect
mayn't I have vulcanised? mayn't you have vulcanised? mayn't he have vulcanised? mayn't we have vulcanised? mayn't you have vulcanised? mayn't they have vulcanised?	mayn't I have been vulcanising? mayn't you have been vulcanising? mayn't he have been vulcanising? mayn't we have been vulcanising? mayn't you have been vulcanising? mayn't they have been vulcanising?