English verb conjugation
OUGHT TO MODIFY

Regular verb: modify - modified - modified

Affirmation

Simple form	V-ing form
I ought to modify you ought to modify he ought to modify we ought to modify you ought to modify they ought to modify	I ought to be modifying you ought to be modifying he ought to be modifying we ought to be modifying you ought to be modifying they ought to be modifying
Perfect	V-ing perfect
I ought to have modified you ought to have modified he ought to have modified we ought to have modified you ought to have modified they ought to have modified	I ought to have been modifying you ought to have been modifying he ought to have been modifying we ought to have been modifying you ought to have been modifying they ought to have been modifying

Negation

Simple form	V-ing form
I oughtn't to modify you oughtn't to modify he oughtn't to modify we oughtn't to modify you oughtn't to modify they oughtn't to modify	I oughtn't to be modifying you oughtn't to be modifying he oughtn't to be modifying we oughtn't to be modifying you oughtn't to be modifying they oughtn't to be modifying
Perfect	V-ing perfect
I oughtn't to have modified you oughtn't to have modified he oughtn't to have modified we oughtn't to have modified you oughtn't to have modified they oughtn't to have modified	I oughtn't to have been modifying you oughtn't to have been modifying he oughtn't to have been modifying we oughtn't to have been modifying you oughtn't to have been modifying they oughtn't to have been modifying

Interrogative form

Simple form	V-ing form
ought to I modify? ought to you modify? ought to he modify? ought to we modify? ought to you modify? ought to they modify?	ought to I be modifying? ought to you be modifying? ought to he be modifying? ought to we be modifying? ought to you be modifying? ought to they be modifying?
Perfect	V-ing perfect
ought to I have modified? ought to you have modified? ought to he have modified? ought to we have modified? ought to you have modified? ought to they have modified?	ought to I have been modifying? ought to you have been modifying? ought to he have been modifying? ought to we have been modifying? ought to you have been modifying? ought to they have been modifying?

Interro-negative form

Simple form	V-ing form
oughtn't I to modify? oughtn't you to modify? oughtn't he to modify? oughtn't we to modify? oughtn't you to modify? oughtn't they to modify?	oughtn't I to be modifying? oughtn't you to be modifying? oughtn't he to be modifying? oughtn't we to be modifying? oughtn't you to be modifying? oughtn't they to be modifying?
Perfect	V-ing perfect
oughtn't I to have modified? oughtn't you to have modified? oughtn't he to have modified? oughtn't we to have modified? oughtn't you to have modified? oughtn't they to have modified?	oughtn't I to have been modifying? oughtn't you to have been modifying? oughtn't he to have been modifying? oughtn't we to have been modifying? oughtn't you to have been modifying? oughtn't they to have been modifying?