English verb conjugation
OUGHT TO ALTER

Regular verb: alter - altered - altered

Affirmation

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

Negation

Simple form	V-ing form
I oughtn't to alter you oughtn't to alter he oughtn't to alter we oughtn't to alter you oughtn't to alter they oughtn't to alter	I oughtn't to be altering you oughtn't to be altering he oughtn't to be altering we oughtn't to be altering you oughtn't to be altering they oughtn't to be altering
Perfect	V-ing perfect
I oughtn't to have altered you oughtn't to have altered he oughtn't to have altered we oughtn't to have altered you oughtn't to have altered they oughtn't to have altered	I oughtn't to have been altering you oughtn't to have been altering he oughtn't to have been altering we oughtn't to have been altering you oughtn't to have been altering they oughtn't to have been altering

Interrogative form

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

Interro-negative form

Simple form	V-ing form
oughtn't I to alter? oughtn't you to alter? oughtn't he to alter? oughtn't we to alter? oughtn't you to alter? oughtn't they to alter?	oughtn't I to be altering? oughtn't you to be altering? oughtn't he to be altering? oughtn't we to be altering? oughtn't you to be altering? oughtn't they to be altering?
Perfect	V-ing perfect
oughtn't I to have altered? oughtn't you to have altered? oughtn't he to have altered? oughtn't we to have altered? oughtn't you to have altered? oughtn't they to have altered?	oughtn't I to have been altering? oughtn't you to have been altering? oughtn't he to have been altering? oughtn't we to have been altering? oughtn't you to have been altering? oughtn't they to have been altering?