English verb conjugation
MAY GRIND

Irregular verb: grind - ground - ground

Affirmation

Simple form	V-ing form
I may grind you may grind he may grind we may grind you may grind they may grind	I may be grinding you may be grinding he may be grinding we may be grinding you may be grinding they may be grinding
Perfect	V-ing perfect
I may have ground you may have ground he may have ground we may have ground you may have ground they may have ground	I may have been grinding you may have been grinding he may have been grinding we may have been grinding you may have been grinding they may have been grinding

Negation

Simple form	V-ing form
I mayn't grind you mayn't grind he mayn't grind we mayn't grind you mayn't grind they mayn't grind	I mayn't be grinding you mayn't be grinding he mayn't be grinding we mayn't be grinding you mayn't be grinding they mayn't be grinding
Perfect	V-ing perfect
I mayn't have ground you mayn't have ground he mayn't have ground we mayn't have ground you mayn't have ground they mayn't have ground	I mayn't have been grinding you mayn't have been grinding he mayn't have been grinding we mayn't have been grinding you mayn't have been grinding they mayn't have been grinding

Interrogative form

Simple form	V-ing form
may I grind? may you grind? may he grind? may we grind? may you grind? may they grind?	may I be grinding? may you be grinding? may he be grinding? may we be grinding? may you be grinding? may they be grinding?
Perfect	V-ing perfect
may I have ground? may you have ground? may he have ground? may we have ground? may you have ground? may they have ground?	may I have been grinding? may you have been grinding? may he have been grinding? may we have been grinding? may you have been grinding? may they have been grinding?

Interro-negative form

Simple form	V-ing form
mayn't I grind? mayn't you grind? mayn't he grind? mayn't we grind? mayn't you grind? mayn't they grind?	mayn't I be grinding? mayn't you be grinding? mayn't he be grinding? mayn't we be grinding? mayn't you be grinding? mayn't they be grinding?
Perfect	V-ing perfect
mayn't I have ground? mayn't you have ground? mayn't he have ground? mayn't we have ground? mayn't you have ground? mayn't they have ground?	mayn't I have been grinding? mayn't you have been grinding? mayn't he have been grinding? mayn't we have been grinding? mayn't you have been grinding? mayn't they have been grinding?