English verb conjugation
OUGHT TO DUET

Regular verb: duet - dueted - dueted

Affirmation

Simple form	V-ing form
I ought to duet you ought to duet she ought to duet we ought to duet you ought to duet they ought to duet	I ought to be dueting you ought to be dueting she ought to be dueting we ought to be dueting you ought to be dueting they ought to be dueting
Perfect	V-ing perfect
I ought to have dueted you ought to have dueted she ought to have dueted we ought to have dueted you ought to have dueted they ought to have dueted	I ought to have been dueting you ought to have been dueting she ought to have been dueting we ought to have been dueting you ought to have been dueting they ought to have been dueting

Negation

Simple form	V-ing form
I oughtn't to duet you oughtn't to duet she oughtn't to duet we oughtn't to duet you oughtn't to duet they oughtn't to duet	I oughtn't to be dueting you oughtn't to be dueting she oughtn't to be dueting we oughtn't to be dueting you oughtn't to be dueting they oughtn't to be dueting
Perfect	V-ing perfect
I oughtn't to have dueted you oughtn't to have dueted she oughtn't to have dueted we oughtn't to have dueted you oughtn't to have dueted they oughtn't to have dueted	I oughtn't to have been dueting you oughtn't to have been dueting she oughtn't to have been dueting we oughtn't to have been dueting you oughtn't to have been dueting they oughtn't to have been dueting

Interrogative form

Simple form	V-ing form
ought to I duet? ought to you duet? ought to she duet? ought to we duet? ought to you duet? ought to they duet?	ought to I be dueting? ought to you be dueting? ought to she be dueting? ought to we be dueting? ought to you be dueting? ought to they be dueting?
Perfect	V-ing perfect
ought to I have dueted? ought to you have dueted? ought to she have dueted? ought to we have dueted? ought to you have dueted? ought to they have dueted?	ought to I have been dueting? ought to you have been dueting? ought to she have been dueting? ought to we have been dueting? ought to you have been dueting? ought to they have been dueting?

Interro-negative form

Simple form	V-ing form
oughtn't I to duet? oughtn't you to duet? oughtn't she to duet? oughtn't we to duet? oughtn't you to duet? oughtn't they to duet?	oughtn't I to be dueting? oughtn't you to be dueting? oughtn't she to be dueting? oughtn't we to be dueting? oughtn't you to be dueting? oughtn't they to be dueting?
Perfect	V-ing perfect
oughtn't I to have dueted? oughtn't you to have dueted? oughtn't she to have dueted? oughtn't we to have dueted? oughtn't you to have dueted? oughtn't they to have dueted?	oughtn't I to have been dueting? oughtn't you to have been dueting? oughtn't she to have been dueting? oughtn't we to have been dueting? oughtn't you to have been dueting? oughtn't they to have been dueting?