English verb conjugation
OUGHT TO SING

Irregular verb: sing - sang - sung

Affirmation

Simple form	V-ing form
I ought to sing you ought to sing she ought to sing we ought to sing you ought to sing they ought to sing	I ought to be singing you ought to be singing she ought to be singing we ought to be singing you ought to be singing they ought to be singing
Perfect	V-ing perfect
I ought to have sung you ought to have sung she ought to have sung we ought to have sung you ought to have sung they ought to have sung	I ought to have been singing you ought to have been singing she ought to have been singing we ought to have been singing you ought to have been singing they ought to have been singing

Negation

Simple form	V-ing form
I oughtn't to sing you oughtn't to sing she oughtn't to sing we oughtn't to sing you oughtn't to sing they oughtn't to sing	I oughtn't to be singing you oughtn't to be singing she oughtn't to be singing we oughtn't to be singing you oughtn't to be singing they oughtn't to be singing
Perfect	V-ing perfect
I oughtn't to have sung you oughtn't to have sung she oughtn't to have sung we oughtn't to have sung you oughtn't to have sung they oughtn't to have sung	I oughtn't to have been singing you oughtn't to have been singing she oughtn't to have been singing we oughtn't to have been singing you oughtn't to have been singing they oughtn't to have been singing

Interrogative form

Simple form	V-ing form
ought to I sing? ought to you sing? ought to she sing? ought to we sing? ought to you sing? ought to they sing?	ought to I be singing? ought to you be singing? ought to she be singing? ought to we be singing? ought to you be singing? ought to they be singing?
Perfect	V-ing perfect
ought to I have sung? ought to you have sung? ought to she have sung? ought to we have sung? ought to you have sung? ought to they have sung?	ought to I have been singing? ought to you have been singing? ought to she have been singing? ought to we have been singing? ought to you have been singing? ought to they have been singing?

Interro-negative form

Simple form	V-ing form
oughtn't I to sing? oughtn't you to sing? oughtn't she to sing? oughtn't we to sing? oughtn't you to sing? oughtn't they to sing?	oughtn't I to be singing? oughtn't you to be singing? oughtn't she to be singing? oughtn't we to be singing? oughtn't you to be singing? oughtn't they to be singing?
Perfect	V-ing perfect
oughtn't I to have sung? oughtn't you to have sung? oughtn't she to have sung? oughtn't we to have sung? oughtn't you to have sung? oughtn't they to have sung?	oughtn't I to have been singing? oughtn't you to have been singing? oughtn't she to have been singing? oughtn't we to have been singing? oughtn't you to have been singing? oughtn't they to have been singing?