English verb conjugation
OUGHT TO RIFF

Regular verb: riff - riffed - riffed

Affirmation

Simple form	V-ing form
I ought to riff you ought to riff he ought to riff we ought to riff you ought to riff they ought to riff	I ought to be riffing you ought to be riffing he ought to be riffing we ought to be riffing you ought to be riffing they ought to be riffing
Perfect	V-ing perfect
I ought to have riffed you ought to have riffed he ought to have riffed we ought to have riffed you ought to have riffed they ought to have riffed	I ought to have been riffing you ought to have been riffing he ought to have been riffing we ought to have been riffing you ought to have been riffing they ought to have been riffing

Negation

Simple form	V-ing form
I oughtn't to riff you oughtn't to riff he oughtn't to riff we oughtn't to riff you oughtn't to riff they oughtn't to riff	I oughtn't to be riffing you oughtn't to be riffing he oughtn't to be riffing we oughtn't to be riffing you oughtn't to be riffing they oughtn't to be riffing
Perfect	V-ing perfect
I oughtn't to have riffed you oughtn't to have riffed he oughtn't to have riffed we oughtn't to have riffed you oughtn't to have riffed they oughtn't to have riffed	I oughtn't to have been riffing you oughtn't to have been riffing he oughtn't to have been riffing we oughtn't to have been riffing you oughtn't to have been riffing they oughtn't to have been riffing

Interrogative form

Simple form	V-ing form
ought to I riff? ought to you riff? ought to he riff? ought to we riff? ought to you riff? ought to they riff?	ought to I be riffing? ought to you be riffing? ought to he be riffing? ought to we be riffing? ought to you be riffing? ought to they be riffing?
Perfect	V-ing perfect
ought to I have riffed? ought to you have riffed? ought to he have riffed? ought to we have riffed? ought to you have riffed? ought to they have riffed?	ought to I have been riffing? ought to you have been riffing? ought to he have been riffing? ought to we have been riffing? ought to you have been riffing? ought to they have been riffing?

Interro-negative form

Simple form	V-ing form
oughtn't I to riff? oughtn't you to riff? oughtn't he to riff? oughtn't we to riff? oughtn't you to riff? oughtn't they to riff?	oughtn't I to be riffing? oughtn't you to be riffing? oughtn't he to be riffing? oughtn't we to be riffing? oughtn't you to be riffing? oughtn't they to be riffing?
Perfect	V-ing perfect
oughtn't I to have riffed? oughtn't you to have riffed? oughtn't he to have riffed? oughtn't we to have riffed? oughtn't you to have riffed? oughtn't they to have riffed?	oughtn't I to have been riffing? oughtn't you to have been riffing? oughtn't he to have been riffing? oughtn't we to have been riffing? oughtn't you to have been riffing? oughtn't they to have been riffing?