English verb conjugation
MAY HEFT

Regular verb: heft - hefted - hefted

Affirmation

Simple form	V-ing form
I may heft you may heft he may heft we may heft you may heft they may heft	I may be hefting you may be hefting he may be hefting we may be hefting you may be hefting they may be hefting
Perfect	V-ing perfect
I may have hefted you may have hefted he may have hefted we may have hefted you may have hefted they may have hefted	I may have been hefting you may have been hefting he may have been hefting we may have been hefting you may have been hefting they may have been hefting

Negation

Simple form	V-ing form
I mayn't heft you mayn't heft he mayn't heft we mayn't heft you mayn't heft they mayn't heft	I mayn't be hefting you mayn't be hefting he mayn't be hefting we mayn't be hefting you mayn't be hefting they mayn't be hefting
Perfect	V-ing perfect
I mayn't have hefted you mayn't have hefted he mayn't have hefted we mayn't have hefted you mayn't have hefted they mayn't have hefted	I mayn't have been hefting you mayn't have been hefting he mayn't have been hefting we mayn't have been hefting you mayn't have been hefting they mayn't have been hefting

Interrogative form

Simple form	V-ing form
may I heft? may you heft? may he heft? may we heft? may you heft? may they heft?	may I be hefting? may you be hefting? may he be hefting? may we be hefting? may you be hefting? may they be hefting?
Perfect	V-ing perfect
may I have hefted? may you have hefted? may he have hefted? may we have hefted? may you have hefted? may they have hefted?	may I have been hefting? may you have been hefting? may he have been hefting? may we have been hefting? may you have been hefting? may they have been hefting?

Interro-negative form

Simple form	V-ing form
mayn't I heft? mayn't you heft? mayn't he heft? mayn't we heft? mayn't you heft? mayn't they heft?	mayn't I be hefting? mayn't you be hefting? mayn't he be hefting? mayn't we be hefting? mayn't you be hefting? mayn't they be hefting?
Perfect	V-ing perfect
mayn't I have hefted? mayn't you have hefted? mayn't he have hefted? mayn't we have hefted? mayn't you have hefted? mayn't they have hefted?	mayn't I have been hefting? mayn't you have been hefting? mayn't he have been hefting? mayn't we have been hefting? mayn't you have been hefting? mayn't they have been hefting?