ought to duet
Regular verb: duet - dueted- dueted

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