English verb conjugation
OUGHT TO BUTTER

Regular verb: butter - buttered - buttered

Affirmation

Simple form	V-ing form
I ought to butter you ought to butter she ought to butter we ought to butter you ought to butter they ought to butter	I ought to be buttering you ought to be buttering she ought to be buttering we ought to be buttering you ought to be buttering they ought to be buttering
Perfect	V-ing perfect
I ought to have buttered you ought to have buttered she ought to have buttered we ought to have buttered you ought to have buttered they ought to have buttered	I ought to have been buttering you ought to have been buttering she ought to have been buttering we ought to have been buttering you ought to have been buttering they ought to have been buttering

Negation

Simple form	V-ing form
I oughtn't to butter you oughtn't to butter she oughtn't to butter we oughtn't to butter you oughtn't to butter they oughtn't to butter	I oughtn't to be buttering you oughtn't to be buttering she oughtn't to be buttering we oughtn't to be buttering you oughtn't to be buttering they oughtn't to be buttering
Perfect	V-ing perfect
I oughtn't to have buttered you oughtn't to have buttered she oughtn't to have buttered we oughtn't to have buttered you oughtn't to have buttered they oughtn't to have buttered	I oughtn't to have been buttering you oughtn't to have been buttering she oughtn't to have been buttering we oughtn't to have been buttering you oughtn't to have been buttering they oughtn't to have been buttering

Interrogative form

Simple form	V-ing form
ought to I butter? ought to you butter? ought to she butter? ought to we butter? ought to you butter? ought to they butter?	ought to I be buttering? ought to you be buttering? ought to she be buttering? ought to we be buttering? ought to you be buttering? ought to they be buttering?
Perfect	V-ing perfect
ought to I have buttered? ought to you have buttered? ought to she have buttered? ought to we have buttered? ought to you have buttered? ought to they have buttered?	ought to I have been buttering? ought to you have been buttering? ought to she have been buttering? ought to we have been buttering? ought to you have been buttering? ought to they have been buttering?

Interro-negative form

Simple form	V-ing form
oughtn't I to butter? oughtn't you to butter? oughtn't she to butter? oughtn't we to butter? oughtn't you to butter? oughtn't they to butter?	oughtn't I to be buttering? oughtn't you to be buttering? oughtn't she to be buttering? oughtn't we to be buttering? oughtn't you to be buttering? oughtn't they to be buttering?
Perfect	V-ing perfect
oughtn't I to have buttered? oughtn't you to have buttered? oughtn't she to have buttered? oughtn't we to have buttered? oughtn't you to have buttered? oughtn't they to have buttered?	oughtn't I to have been buttering? oughtn't you to have been buttering? oughtn't she to have been buttering? oughtn't we to have been buttering? oughtn't you to have been buttering? oughtn't they to have been buttering?