English verb conjugation
MAY BILL

Regular verb: bill - billed - billed

Affirmation

Simple form	V-ing form
I may bill you may bill she may bill we may bill you may bill they may bill	I may be billing you may be billing she may be billing we may be billing you may be billing they may be billing
Perfect	V-ing perfect
I may have billed you may have billed she may have billed we may have billed you may have billed they may have billed	I may have been billing you may have been billing she may have been billing we may have been billing you may have been billing they may have been billing

Negation

Simple form	V-ing form
I mayn't bill you mayn't bill she mayn't bill we mayn't bill you mayn't bill they mayn't bill	I mayn't be billing you mayn't be billing she mayn't be billing we mayn't be billing you mayn't be billing they mayn't be billing
Perfect	V-ing perfect
I mayn't have billed you mayn't have billed she mayn't have billed we mayn't have billed you mayn't have billed they mayn't have billed	I mayn't have been billing you mayn't have been billing she mayn't have been billing we mayn't have been billing you mayn't have been billing they mayn't have been billing

Interrogative form

Simple form	V-ing form
may I bill? may you bill? may she bill? may we bill? may you bill? may they bill?	may I be billing? may you be billing? may she be billing? may we be billing? may you be billing? may they be billing?
Perfect	V-ing perfect
may I have billed? may you have billed? may she have billed? may we have billed? may you have billed? may they have billed?	may I have been billing? may you have been billing? may she have been billing? may we have been billing? may you have been billing? may they have been billing?

Interro-negative form

Simple form	V-ing form
mayn't I bill? mayn't you bill? mayn't she bill? mayn't we bill? mayn't you bill? mayn't they bill?	mayn't I be billing? mayn't you be billing? mayn't she be billing? mayn't we be billing? mayn't you be billing? mayn't they be billing?
Perfect	V-ing perfect
mayn't I have billed? mayn't you have billed? mayn't she have billed? mayn't we have billed? mayn't you have billed? mayn't they have billed?	mayn't I have been billing? mayn't you have been billing? mayn't she have been billing? mayn't we have been billing? mayn't you have been billing? mayn't they have been billing?