English verb conjugation
SHALL UNTACK

Regular verb: untack - untacked - untacked

Affirmation

Simple form	V-ing form
I shall untack you shall untack he shall untack we shall untack you shall untack they shall untack	I shall be untacking you shall be untacking he shall be untacking we shall be untacking you shall be untacking they shall be untacking
Perfect	V-ing perfect
I shall have untacked you shall have untacked he shall have untacked we shall have untacked you shall have untacked they shall have untacked	I shall have been untacking you shall have been untacking he shall have been untacking we shall have been untacking you shall have been untacking they shall have been untacking

Negation

Simple form	V-ing form
I shall not untack you shall not untack he shall not untack we shall not untack you shall not untack they shall not untack	I shall not be untacking you shall not be untacking he shall not be untacking we shall not be untacking you shall not be untacking they shall not be untacking
Perfect	V-ing perfect
I shall not have untacked you shall not have untacked he shall not have untacked we shall not have untacked you shall not have untacked they shall not have untacked	I shall not have been untacking you shall not have been untacking he shall not have been untacking we shall not have been untacking you shall not have been untacking they shall not have been untacking

Interrogative form

Simple form	V-ing form
shall I untack? shall you untack? shall he untack? shall we untack? shall you untack? shall they untack?	shall I be untacking? shall you be untacking? shall he be untacking? shall we be untacking? shall you be untacking? shall they be untacking?
Perfect	V-ing perfect
shall I have untacked? shall you have untacked? shall he have untacked? shall we have untacked? shall you have untacked? shall they have untacked?	shall I have been untacking? shall you have been untacking? shall he have been untacking? shall we have been untacking? shall you have been untacking? shall they have been untacking?

Interro-negative form

Simple form	V-ing form
shall I not untack? shall you not untack? shall he not untack? shall we not untack? shall you not untack? shall they not untack?	shall I not be untacking? shall you not be untacking? shall he not be untacking? shall we not be untacking? shall you not be untacking? shall they not be untacking?
Perfect	V-ing perfect
shall I not have untacked? shall you not have untacked? shall he not have untacked? shall we not have untacked? shall you not have untacked? shall they not have untacked?	shall I not have been untacking? shall you not have been untacking? shall he not have been untacking? shall we not have been untacking? shall you not have been untacking? shall they not have been untacking?