English verb conjugation
MAY QUAFF

Regular verb: quaff - quaffed - quaffed

Affirmation

Simple form	V-ing form
I may quaff you may quaff he may quaff we may quaff you may quaff they may quaff	I may be quaffing you may be quaffing he may be quaffing we may be quaffing you may be quaffing they may be quaffing
Perfect	V-ing perfect
I may have quaffed you may have quaffed he may have quaffed we may have quaffed you may have quaffed they may have quaffed	I may have been quaffing you may have been quaffing he may have been quaffing we may have been quaffing you may have been quaffing they may have been quaffing

Negation

Simple form	V-ing form
I mayn't quaff you mayn't quaff he mayn't quaff we mayn't quaff you mayn't quaff they mayn't quaff	I mayn't be quaffing you mayn't be quaffing he mayn't be quaffing we mayn't be quaffing you mayn't be quaffing they mayn't be quaffing
Perfect	V-ing perfect
I mayn't have quaffed you mayn't have quaffed he mayn't have quaffed we mayn't have quaffed you mayn't have quaffed they mayn't have quaffed	I mayn't have been quaffing you mayn't have been quaffing he mayn't have been quaffing we mayn't have been quaffing you mayn't have been quaffing they mayn't have been quaffing

Interrogative form

Simple form	V-ing form
may I quaff? may you quaff? may he quaff? may we quaff? may you quaff? may they quaff?	may I be quaffing? may you be quaffing? may he be quaffing? may we be quaffing? may you be quaffing? may they be quaffing?
Perfect	V-ing perfect
may I have quaffed? may you have quaffed? may he have quaffed? may we have quaffed? may you have quaffed? may they have quaffed?	may I have been quaffing? may you have been quaffing? may he have been quaffing? may we have been quaffing? may you have been quaffing? may they have been quaffing?

Interro-negative form

Simple form	V-ing form
mayn't I quaff? mayn't you quaff? mayn't he quaff? mayn't we quaff? mayn't you quaff? mayn't they quaff?	mayn't I be quaffing? mayn't you be quaffing? mayn't he be quaffing? mayn't we be quaffing? mayn't you be quaffing? mayn't they be quaffing?
Perfect	V-ing perfect
mayn't I have quaffed? mayn't you have quaffed? mayn't he have quaffed? mayn't we have quaffed? mayn't you have quaffed? mayn't they have quaffed?	mayn't I have been quaffing? mayn't you have been quaffing? mayn't he have been quaffing? mayn't we have been quaffing? mayn't you have been quaffing? mayn't they have been quaffing?