English verb conjugation
MAY DO

Irregular verb: do - did - done

Affirmation

Simple form	V-ing form
I may do you may do he may do we may do you may do they may do	I may be doing you may be doing he may be doing we may be doing you may be doing they may be doing
Perfect	V-ing perfect
I may have done you may have done he may have done we may have done you may have done they may have done	I may have been doing you may have been doing he may have been doing we may have been doing you may have been doing they may have been doing

Negation

Simple form	V-ing form
I mayn't do you mayn't do he mayn't do we mayn't do you mayn't do they mayn't do	I mayn't be doing you mayn't be doing he mayn't be doing we mayn't be doing you mayn't be doing they mayn't be doing
Perfect	V-ing perfect
I mayn't have done you mayn't have done he mayn't have done we mayn't have done you mayn't have done they mayn't have done	I mayn't have been doing you mayn't have been doing he mayn't have been doing we mayn't have been doing you mayn't have been doing they mayn't have been doing

Interrogative form

Simple form	V-ing form
may I do? may you do? may he do? may we do? may you do? may they do?	may I be doing? may you be doing? may he be doing? may we be doing? may you be doing? may they be doing?
Perfect	V-ing perfect
may I have done? may you have done? may he have done? may we have done? may you have done? may they have done?	may I have been doing? may you have been doing? may he have been doing? may we have been doing? may you have been doing? may they have been doing?

Interro-negative form

Simple form	V-ing form
mayn't I do? mayn't you do? mayn't he do? mayn't we do? mayn't you do? mayn't they do?	mayn't I be doing? mayn't you be doing? mayn't he be doing? mayn't we be doing? mayn't you be doing? mayn't they be doing?
Perfect	V-ing perfect
mayn't I have done? mayn't you have done? mayn't he have done? mayn't we have done? mayn't you have done? mayn't they have done?	mayn't I have been doing? mayn't you have been doing? mayn't he have been doing? mayn't we have been doing? mayn't you have been doing? mayn't they have been doing?