English verb conjugation
OUGHT TO THORN

Regular verb: thorn - thorned - thorned

Affirmation

Simple form	V-ing form
I ought to thorn you ought to thorn he ought to thorn we ought to thorn you ought to thorn they ought to thorn	I ought to be thorning you ought to be thorning he ought to be thorning we ought to be thorning you ought to be thorning they ought to be thorning
Perfect	V-ing perfect
I ought to have thorned you ought to have thorned he ought to have thorned we ought to have thorned you ought to have thorned they ought to have thorned	I ought to have been thorning you ought to have been thorning he ought to have been thorning we ought to have been thorning you ought to have been thorning they ought to have been thorning

Negation

Simple form	V-ing form
I oughtn't to thorn you oughtn't to thorn he oughtn't to thorn we oughtn't to thorn you oughtn't to thorn they oughtn't to thorn	I oughtn't to be thorning you oughtn't to be thorning he oughtn't to be thorning we oughtn't to be thorning you oughtn't to be thorning they oughtn't to be thorning
Perfect	V-ing perfect
I oughtn't to have thorned you oughtn't to have thorned he oughtn't to have thorned we oughtn't to have thorned you oughtn't to have thorned they oughtn't to have thorned	I oughtn't to have been thorning you oughtn't to have been thorning he oughtn't to have been thorning we oughtn't to have been thorning you oughtn't to have been thorning they oughtn't to have been thorning

Interrogative form

Simple form	V-ing form
ought to I thorn? ought to you thorn? ought to he thorn? ought to we thorn? ought to you thorn? ought to they thorn?	ought to I be thorning? ought to you be thorning? ought to he be thorning? ought to we be thorning? ought to you be thorning? ought to they be thorning?
Perfect	V-ing perfect
ought to I have thorned? ought to you have thorned? ought to he have thorned? ought to we have thorned? ought to you have thorned? ought to they have thorned?	ought to I have been thorning? ought to you have been thorning? ought to he have been thorning? ought to we have been thorning? ought to you have been thorning? ought to they have been thorning?

Interro-negative form

Simple form	V-ing form
oughtn't I to thorn? oughtn't you to thorn? oughtn't he to thorn? oughtn't we to thorn? oughtn't you to thorn? oughtn't they to thorn?	oughtn't I to be thorning? oughtn't you to be thorning? oughtn't he to be thorning? oughtn't we to be thorning? oughtn't you to be thorning? oughtn't they to be thorning?
Perfect	V-ing perfect
oughtn't I to have thorned? oughtn't you to have thorned? oughtn't he to have thorned? oughtn't we to have thorned? oughtn't you to have thorned? oughtn't they to have thorned?	oughtn't I to have been thorning? oughtn't you to have been thorning? oughtn't he to have been thorning? oughtn't we to have been thorning? oughtn't you to have been thorning? oughtn't they to have been thorning?