English verb conjugation
SHOULD GRIND

Irregular verb: grind - ground - ground

Affirmation

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

Negation

Simple form	V-ing form
I should not grind you should not grind he should not grind we should not grind you should not grind they should not grind	I should not be grinding you should not be grinding he should not be grinding we should not be grinding you should not be grinding they should not be grinding
Perfect	V-ing perfect
I should not have ground you should not have ground he should not have ground we should not have ground you should not have ground they should not have ground	I should not have been grinding you should not have been grinding he should not have been grinding we should not have been grinding you should not have been grinding they should not have been grinding

Interrogative form

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

Interro-negative form

Simple form	V-ing form
should I not grind? should you not grind? should he not grind? should we not grind? should you not grind? should they not grind?	should I not be grinding? should you not be grinding? should he not be grinding? should we not be grinding? should you not be grinding? should they not be grinding?
Perfect	V-ing perfect
should I not have ground? should you not have ground? should he not have ground? should we not have ground? should you not have ground? should they not have ground?	should I not have been grinding? should you not have been grinding? should he not have been grinding? should we not have been grinding? should you not have been grinding? should they not have been grinding?