English verb conjugation
SHOULD ALTER ALTER

Regular verb: alter alter - alter altered - alter altered

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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