English verb conjugation
OUGHT TO PREEN

Regular verb: preen - preened - preened

Affirmation

Simple form	V-ing form
I ought to preen you ought to preen she ought to preen we ought to preen you ought to preen they ought to preen	I ought to be preening you ought to be preening she ought to be preening we ought to be preening you ought to be preening they ought to be preening
Perfect	V-ing perfect
I ought to have preened you ought to have preened she ought to have preened we ought to have preened you ought to have preened they ought to have preened	I ought to have been preening you ought to have been preening she ought to have been preening we ought to have been preening you ought to have been preening they ought to have been preening

Negation

Simple form	V-ing form
I oughtn't to preen you oughtn't to preen she oughtn't to preen we oughtn't to preen you oughtn't to preen they oughtn't to preen	I oughtn't to be preening you oughtn't to be preening she oughtn't to be preening we oughtn't to be preening you oughtn't to be preening they oughtn't to be preening
Perfect	V-ing perfect
I oughtn't to have preened you oughtn't to have preened she oughtn't to have preened we oughtn't to have preened you oughtn't to have preened they oughtn't to have preened	I oughtn't to have been preening you oughtn't to have been preening she oughtn't to have been preening we oughtn't to have been preening you oughtn't to have been preening they oughtn't to have been preening

Interrogative form

Simple form	V-ing form
ought to I preen? ought to you preen? ought to she preen? ought to we preen? ought to you preen? ought to they preen?	ought to I be preening? ought to you be preening? ought to she be preening? ought to we be preening? ought to you be preening? ought to they be preening?
Perfect	V-ing perfect
ought to I have preened? ought to you have preened? ought to she have preened? ought to we have preened? ought to you have preened? ought to they have preened?	ought to I have been preening? ought to you have been preening? ought to she have been preening? ought to we have been preening? ought to you have been preening? ought to they have been preening?

Interro-negative form

Simple form	V-ing form
oughtn't I to preen? oughtn't you to preen? oughtn't she to preen? oughtn't we to preen? oughtn't you to preen? oughtn't they to preen?	oughtn't I to be preening? oughtn't you to be preening? oughtn't she to be preening? oughtn't we to be preening? oughtn't you to be preening? oughtn't they to be preening?
Perfect	V-ing perfect
oughtn't I to have preened? oughtn't you to have preened? oughtn't she to have preened? oughtn't we to have preened? oughtn't you to have preened? oughtn't they to have preened?	oughtn't I to have been preening? oughtn't you to have been preening? oughtn't she to have been preening? oughtn't we to have been preening? oughtn't you to have been preening? oughtn't they to have been preening?