English verb conjugation
MAY FRET

Regular verb: fret - fretted - fretted

Affirmation

Simple form	V-ing form
I may fret you may fret he may fret we may fret you may fret they may fret	I may be fretting you may be fretting he may be fretting we may be fretting you may be fretting they may be fretting
Perfect	V-ing perfect
I may have fretted you may have fretted he may have fretted we may have fretted you may have fretted they may have fretted	I may have been fretting you may have been fretting he may have been fretting we may have been fretting you may have been fretting they may have been fretting

Negation

Simple form	V-ing form
I mayn't fret you mayn't fret he mayn't fret we mayn't fret you mayn't fret they mayn't fret	I mayn't be fretting you mayn't be fretting he mayn't be fretting we mayn't be fretting you mayn't be fretting they mayn't be fretting
Perfect	V-ing perfect
I mayn't have fretted you mayn't have fretted he mayn't have fretted we mayn't have fretted you mayn't have fretted they mayn't have fretted	I mayn't have been fretting you mayn't have been fretting he mayn't have been fretting we mayn't have been fretting you mayn't have been fretting they mayn't have been fretting

Interrogative form

Simple form	V-ing form
may I fret? may you fret? may he fret? may we fret? may you fret? may they fret?	may I be fretting? may you be fretting? may he be fretting? may we be fretting? may you be fretting? may they be fretting?
Perfect	V-ing perfect
may I have fretted? may you have fretted? may he have fretted? may we have fretted? may you have fretted? may they have fretted?	may I have been fretting? may you have been fretting? may he have been fretting? may we have been fretting? may you have been fretting? may they have been fretting?

Interro-negative form

Simple form	V-ing form
mayn't I fret? mayn't you fret? mayn't he fret? mayn't we fret? mayn't you fret? mayn't they fret?	mayn't I be fretting? mayn't you be fretting? mayn't he be fretting? mayn't we be fretting? mayn't you be fretting? mayn't they be fretting?
Perfect	V-ing perfect
mayn't I have fretted? mayn't you have fretted? mayn't he have fretted? mayn't we have fretted? mayn't you have fretted? mayn't they have fretted?	mayn't I have been fretting? mayn't you have been fretting? mayn't he have been fretting? mayn't we have been fretting? mayn't you have been fretting? mayn't they have been fretting?