English verb conjugation
OUGHT TO QUAIL

Regular verb: quail - quailed - quailed

Affirmation

Simple form	V-ing form
I ought to quail you ought to quail he ought to quail we ought to quail you ought to quail they ought to quail	I ought to be quailing you ought to be quailing he ought to be quailing we ought to be quailing you ought to be quailing they ought to be quailing
Perfect	V-ing perfect
I ought to have quailed you ought to have quailed he ought to have quailed we ought to have quailed you ought to have quailed they ought to have quailed	I ought to have been quailing you ought to have been quailing he ought to have been quailing we ought to have been quailing you ought to have been quailing they ought to have been quailing

Negation

Simple form	V-ing form
I oughtn't to quail you oughtn't to quail he oughtn't to quail we oughtn't to quail you oughtn't to quail they oughtn't to quail	I oughtn't to be quailing you oughtn't to be quailing he oughtn't to be quailing we oughtn't to be quailing you oughtn't to be quailing they oughtn't to be quailing
Perfect	V-ing perfect
I oughtn't to have quailed you oughtn't to have quailed he oughtn't to have quailed we oughtn't to have quailed you oughtn't to have quailed they oughtn't to have quailed	I oughtn't to have been quailing you oughtn't to have been quailing he oughtn't to have been quailing we oughtn't to have been quailing you oughtn't to have been quailing they oughtn't to have been quailing

Interrogative form

Simple form	V-ing form
ought to I quail? ought to you quail? ought to he quail? ought to we quail? ought to you quail? ought to they quail?	ought to I be quailing? ought to you be quailing? ought to he be quailing? ought to we be quailing? ought to you be quailing? ought to they be quailing?
Perfect	V-ing perfect
ought to I have quailed? ought to you have quailed? ought to he have quailed? ought to we have quailed? ought to you have quailed? ought to they have quailed?	ought to I have been quailing? ought to you have been quailing? ought to he have been quailing? ought to we have been quailing? ought to you have been quailing? ought to they have been quailing?

Interro-negative form

Simple form	V-ing form
oughtn't I to quail? oughtn't you to quail? oughtn't he to quail? oughtn't we to quail? oughtn't you to quail? oughtn't they to quail?	oughtn't I to be quailing? oughtn't you to be quailing? oughtn't he to be quailing? oughtn't we to be quailing? oughtn't you to be quailing? oughtn't they to be quailing?
Perfect	V-ing perfect
oughtn't I to have quailed? oughtn't you to have quailed? oughtn't he to have quailed? oughtn't we to have quailed? oughtn't you to have quailed? oughtn't they to have quailed?	oughtn't I to have been quailing? oughtn't you to have been quailing? oughtn't he to have been quailing? oughtn't we to have been quailing? oughtn't you to have been quailing? oughtn't they to have been quailing?