English verb conjugation
OUGHT TO NAIL

Regular verb: nail - nailed - nailed

Affirmation

Simple form	V-ing form
I ought to nail you ought to nail he ought to nail we ought to nail you ought to nail they ought to nail	I ought to be nailing you ought to be nailing he ought to be nailing we ought to be nailing you ought to be nailing they ought to be nailing
Perfect	V-ing perfect
I ought to have nailed you ought to have nailed he ought to have nailed we ought to have nailed you ought to have nailed they ought to have nailed	I ought to have been nailing you ought to have been nailing he ought to have been nailing we ought to have been nailing you ought to have been nailing they ought to have been nailing

Negation

Simple form	V-ing form
I oughtn't to nail you oughtn't to nail he oughtn't to nail we oughtn't to nail you oughtn't to nail they oughtn't to nail	I oughtn't to be nailing you oughtn't to be nailing he oughtn't to be nailing we oughtn't to be nailing you oughtn't to be nailing they oughtn't to be nailing
Perfect	V-ing perfect
I oughtn't to have nailed you oughtn't to have nailed he oughtn't to have nailed we oughtn't to have nailed you oughtn't to have nailed they oughtn't to have nailed	I oughtn't to have been nailing you oughtn't to have been nailing he oughtn't to have been nailing we oughtn't to have been nailing you oughtn't to have been nailing they oughtn't to have been nailing

Interrogative form

Simple form	V-ing form
ought to I nail? ought to you nail? ought to he nail? ought to we nail? ought to you nail? ought to they nail?	ought to I be nailing? ought to you be nailing? ought to he be nailing? ought to we be nailing? ought to you be nailing? ought to they be nailing?
Perfect	V-ing perfect
ought to I have nailed? ought to you have nailed? ought to he have nailed? ought to we have nailed? ought to you have nailed? ought to they have nailed?	ought to I have been nailing? ought to you have been nailing? ought to he have been nailing? ought to we have been nailing? ought to you have been nailing? ought to they have been nailing?

Interro-negative form

Simple form	V-ing form
oughtn't I to nail? oughtn't you to nail? oughtn't he to nail? oughtn't we to nail? oughtn't you to nail? oughtn't they to nail?	oughtn't I to be nailing? oughtn't you to be nailing? oughtn't he to be nailing? oughtn't we to be nailing? oughtn't you to be nailing? oughtn't they to be nailing?
Perfect	V-ing perfect
oughtn't I to have nailed? oughtn't you to have nailed? oughtn't he to have nailed? oughtn't we to have nailed? oughtn't you to have nailed? oughtn't they to have nailed?	oughtn't I to have been nailing? oughtn't you to have been nailing? oughtn't he to have been nailing? oughtn't we to have been nailing? oughtn't you to have been nailing? oughtn't they to have been nailing?