English verb conjugation
MAY SMOOTH

Regular verb: smooth - smoothed - smoothed

Affirmation

Simple form	V-ing form
I may smooth you may smooth she may smooth we may smooth you may smooth they may smooth	I may be smoothing you may be smoothing she may be smoothing we may be smoothing you may be smoothing they may be smoothing
Perfect	V-ing perfect
I may have smoothed you may have smoothed she may have smoothed we may have smoothed you may have smoothed they may have smoothed	I may have been smoothing you may have been smoothing she may have been smoothing we may have been smoothing you may have been smoothing they may have been smoothing

Negation

Simple form	V-ing form
I mayn't smooth you mayn't smooth she mayn't smooth we mayn't smooth you mayn't smooth they mayn't smooth	I mayn't be smoothing you mayn't be smoothing she mayn't be smoothing we mayn't be smoothing you mayn't be smoothing they mayn't be smoothing
Perfect	V-ing perfect
I mayn't have smoothed you mayn't have smoothed she mayn't have smoothed we mayn't have smoothed you mayn't have smoothed they mayn't have smoothed	I mayn't have been smoothing you mayn't have been smoothing she mayn't have been smoothing we mayn't have been smoothing you mayn't have been smoothing they mayn't have been smoothing

Interrogative form

Simple form	V-ing form
may I smooth? may you smooth? may she smooth? may we smooth? may you smooth? may they smooth?	may I be smoothing? may you be smoothing? may she be smoothing? may we be smoothing? may you be smoothing? may they be smoothing?
Perfect	V-ing perfect
may I have smoothed? may you have smoothed? may she have smoothed? may we have smoothed? may you have smoothed? may they have smoothed?	may I have been smoothing? may you have been smoothing? may she have been smoothing? may we have been smoothing? may you have been smoothing? may they have been smoothing?

Interro-negative form

Simple form	V-ing form
mayn't I smooth? mayn't you smooth? mayn't she smooth? mayn't we smooth? mayn't you smooth? mayn't they smooth?	mayn't I be smoothing? mayn't you be smoothing? mayn't she be smoothing? mayn't we be smoothing? mayn't you be smoothing? mayn't they be smoothing?
Perfect	V-ing perfect
mayn't I have smoothed? mayn't you have smoothed? mayn't she have smoothed? mayn't we have smoothed? mayn't you have smoothed? mayn't they have smoothed?	mayn't I have been smoothing? mayn't you have been smoothing? mayn't she have been smoothing? mayn't we have been smoothing? mayn't you have been smoothing? mayn't they have been smoothing?