English verb conjugation
SHALL ALTER

Regular verb: alter - altered - altered

Affirmation

Simple form	V-ing form
I shall alter you shall alter he shall alter we shall alter you shall alter they shall alter	I shall be altering you shall be altering he shall be altering we shall be altering you shall be altering they shall be altering
Perfect	V-ing perfect
I shall have altered you shall have altered he shall have altered we shall have altered you shall have altered they shall have altered	I shall have been altering you shall have been altering he shall have been altering we shall have been altering you shall have been altering they shall have been altering

Negation

Simple form	V-ing form
I shall not alter you shall not alter he shall not alter we shall not alter you shall not alter they shall not alter	I shall not be altering you shall not be altering he shall not be altering we shall not be altering you shall not be altering they shall not be altering
Perfect	V-ing perfect
I shall not have altered you shall not have altered he shall not have altered we shall not have altered you shall not have altered they shall not have altered	I shall not have been altering you shall not have been altering he shall not have been altering we shall not have been altering you shall not have been altering they shall not have been altering

Interrogative form

Simple form	V-ing form
shall I alter? shall you alter? shall he alter? shall we alter? shall you alter? shall they alter?	shall I be altering? shall you be altering? shall he be altering? shall we be altering? shall you be altering? shall they be altering?
Perfect	V-ing perfect
shall I have altered? shall you have altered? shall he have altered? shall we have altered? shall you have altered? shall they have altered?	shall I have been altering? shall you have been altering? shall he have been altering? shall we have been altering? shall you have been altering? shall they have been altering?

Interro-negative form

Simple form	V-ing form
shall I not alter? shall you not alter? shall he not alter? shall we not alter? shall you not alter? shall they not alter?	shall I not be altering? shall you not be altering? shall he not be altering? shall we not be altering? shall you not be altering? shall they not be altering?
Perfect	V-ing perfect
shall I not have altered? shall you not have altered? shall he not have altered? shall we not have altered? shall you not have altered? shall they not have altered?	shall I not have been altering? shall you not have been altering? shall he not have been altering? shall we not have been altering? shall you not have been altering? shall they not have been altering?