English verb conjugation
MAY START

Regular verb: start - started - started

Affirmation

Simple form	V-ing form
I may start you may start he may start we may start you may start they may start	I may be starting you may be starting he may be starting we may be starting you may be starting they may be starting
Perfect	V-ing perfect
I may have started you may have started he may have started we may have started you may have started they may have started	I may have been starting you may have been starting he may have been starting we may have been starting you may have been starting they may have been starting

Negation

Simple form	V-ing form
I mayn't start you mayn't start he mayn't start we mayn't start you mayn't start they mayn't start	I mayn't be starting you mayn't be starting he mayn't be starting we mayn't be starting you mayn't be starting they mayn't be starting
Perfect	V-ing perfect
I mayn't have started you mayn't have started he mayn't have started we mayn't have started you mayn't have started they mayn't have started	I mayn't have been starting you mayn't have been starting he mayn't have been starting we mayn't have been starting you mayn't have been starting they mayn't have been starting

Interrogative form

Simple form	V-ing form
may I start? may you start? may he start? may we start? may you start? may they start?	may I be starting? may you be starting? may he be starting? may we be starting? may you be starting? may they be starting?
Perfect	V-ing perfect
may I have started? may you have started? may he have started? may we have started? may you have started? may they have started?	may I have been starting? may you have been starting? may he have been starting? may we have been starting? may you have been starting? may they have been starting?

Interro-negative form

Simple form	V-ing form
mayn't I start? mayn't you start? mayn't he start? mayn't we start? mayn't you start? mayn't they start?	mayn't I be starting? mayn't you be starting? mayn't he be starting? mayn't we be starting? mayn't you be starting? mayn't they be starting?
Perfect	V-ing perfect
mayn't I have started? mayn't you have started? mayn't he have started? mayn't we have started? mayn't you have started? mayn't they have started?	mayn't I have been starting? mayn't you have been starting? mayn't he have been starting? mayn't we have been starting? mayn't you have been starting? mayn't they have been starting?