English verb conjugation
OUGHT TO PLOUGH

Regular verb: plough - ploughed - ploughed

Affirmation

Simple form	V-ing form
I ought to plough you ought to plough he ought to plough we ought to plough you ought to plough they ought to plough	I ought to be ploughing you ought to be ploughing he ought to be ploughing we ought to be ploughing you ought to be ploughing they ought to be ploughing
Perfect	V-ing perfect
I ought to have ploughed you ought to have ploughed he ought to have ploughed we ought to have ploughed you ought to have ploughed they ought to have ploughed	I ought to have been ploughing you ought to have been ploughing he ought to have been ploughing we ought to have been ploughing you ought to have been ploughing they ought to have been ploughing

Negation

Simple form	V-ing form
I oughtn't to plough you oughtn't to plough he oughtn't to plough we oughtn't to plough you oughtn't to plough they oughtn't to plough	I oughtn't to be ploughing you oughtn't to be ploughing he oughtn't to be ploughing we oughtn't to be ploughing you oughtn't to be ploughing they oughtn't to be ploughing
Perfect	V-ing perfect
I oughtn't to have ploughed you oughtn't to have ploughed he oughtn't to have ploughed we oughtn't to have ploughed you oughtn't to have ploughed they oughtn't to have ploughed	I oughtn't to have been ploughing you oughtn't to have been ploughing he oughtn't to have been ploughing we oughtn't to have been ploughing you oughtn't to have been ploughing they oughtn't to have been ploughing

Interrogative form

Simple form	V-ing form
ought to I plough? ought to you plough? ought to he plough? ought to we plough? ought to you plough? ought to they plough?	ought to I be ploughing? ought to you be ploughing? ought to he be ploughing? ought to we be ploughing? ought to you be ploughing? ought to they be ploughing?
Perfect	V-ing perfect
ought to I have ploughed? ought to you have ploughed? ought to he have ploughed? ought to we have ploughed? ought to you have ploughed? ought to they have ploughed?	ought to I have been ploughing? ought to you have been ploughing? ought to he have been ploughing? ought to we have been ploughing? ought to you have been ploughing? ought to they have been ploughing?

Interro-negative form

Simple form	V-ing form
oughtn't I to plough? oughtn't you to plough? oughtn't he to plough? oughtn't we to plough? oughtn't you to plough? oughtn't they to plough?	oughtn't I to be ploughing? oughtn't you to be ploughing? oughtn't he to be ploughing? oughtn't we to be ploughing? oughtn't you to be ploughing? oughtn't they to be ploughing?
Perfect	V-ing perfect
oughtn't I to have ploughed? oughtn't you to have ploughed? oughtn't he to have ploughed? oughtn't we to have ploughed? oughtn't you to have ploughed? oughtn't they to have ploughed?	oughtn't I to have been ploughing? oughtn't you to have been ploughing? oughtn't he to have been ploughing? oughtn't we to have been ploughing? oughtn't you to have been ploughing? oughtn't they to have been ploughing?