English verb conjugation
MAY COMMENCE

Regular verb: commence - commenced - commenced

Affirmation

Simple form	V-ing form
I may commence you may commence he may commence we may commence you may commence they may commence	I may be commencing you may be commencing he may be commencing we may be commencing you may be commencing they may be commencing
Perfect	V-ing perfect
I may have commenced you may have commenced he may have commenced we may have commenced you may have commenced they may have commenced	I may have been commencing you may have been commencing he may have been commencing we may have been commencing you may have been commencing they may have been commencing

Negation

Simple form	V-ing form
I mayn't commence you mayn't commence he mayn't commence we mayn't commence you mayn't commence they mayn't commence	I mayn't be commencing you mayn't be commencing he mayn't be commencing we mayn't be commencing you mayn't be commencing they mayn't be commencing
Perfect	V-ing perfect
I mayn't have commenced you mayn't have commenced he mayn't have commenced we mayn't have commenced you mayn't have commenced they mayn't have commenced	I mayn't have been commencing you mayn't have been commencing he mayn't have been commencing we mayn't have been commencing you mayn't have been commencing they mayn't have been commencing

Interrogative form

Simple form	V-ing form
may I commence? may you commence? may he commence? may we commence? may you commence? may they commence?	may I be commencing? may you be commencing? may he be commencing? may we be commencing? may you be commencing? may they be commencing?
Perfect	V-ing perfect
may I have commenced? may you have commenced? may he have commenced? may we have commenced? may you have commenced? may they have commenced?	may I have been commencing? may you have been commencing? may he have been commencing? may we have been commencing? may you have been commencing? may they have been commencing?

Interro-negative form

Simple form	V-ing form
mayn't I commence? mayn't you commence? mayn't he commence? mayn't we commence? mayn't you commence? mayn't they commence?	mayn't I be commencing? mayn't you be commencing? mayn't he be commencing? mayn't we be commencing? mayn't you be commencing? mayn't they be commencing?
Perfect	V-ing perfect
mayn't I have commenced? mayn't you have commenced? mayn't he have commenced? mayn't we have commenced? mayn't you have commenced? mayn't they have commenced?	mayn't I have been commencing? mayn't you have been commencing? mayn't he have been commencing? mayn't we have been commencing? mayn't you have been commencing? mayn't they have been commencing?