English verb conjugation
MAY PROMISE

Regular verb: promise - promised - promised

Affirmation

Simple form	V-ing form
I may promise you may promise he may promise we may promise you may promise they may promise	I may be promising you may be promising he may be promising we may be promising you may be promising they may be promising
Perfect	V-ing perfect
I may have promised you may have promised he may have promised we may have promised you may have promised they may have promised	I may have been promising you may have been promising he may have been promising we may have been promising you may have been promising they may have been promising

Negation

Simple form	V-ing form
I mayn't promise you mayn't promise he mayn't promise we mayn't promise you mayn't promise they mayn't promise	I mayn't be promising you mayn't be promising he mayn't be promising we mayn't be promising you mayn't be promising they mayn't be promising
Perfect	V-ing perfect
I mayn't have promised you mayn't have promised he mayn't have promised we mayn't have promised you mayn't have promised they mayn't have promised	I mayn't have been promising you mayn't have been promising he mayn't have been promising we mayn't have been promising you mayn't have been promising they mayn't have been promising

Interrogative form

Simple form	V-ing form
may I promise? may you promise? may he promise? may we promise? may you promise? may they promise?	may I be promising? may you be promising? may he be promising? may we be promising? may you be promising? may they be promising?
Perfect	V-ing perfect
may I have promised? may you have promised? may he have promised? may we have promised? may you have promised? may they have promised?	may I have been promising? may you have been promising? may he have been promising? may we have been promising? may you have been promising? may they have been promising?

Interro-negative form

Simple form	V-ing form
mayn't I promise? mayn't you promise? mayn't he promise? mayn't we promise? mayn't you promise? mayn't they promise?	mayn't I be promising? mayn't you be promising? mayn't he be promising? mayn't we be promising? mayn't you be promising? mayn't they be promising?
Perfect	V-ing perfect
mayn't I have promised? mayn't you have promised? mayn't he have promised? mayn't we have promised? mayn't you have promised? mayn't they have promised?	mayn't I have been promising? mayn't you have been promising? mayn't he have been promising? mayn't we have been promising? mayn't you have been promising? mayn't they have been promising?