English verb conjugation
OUGHT TO SIT

Irregular verb: sit - sat - sat

Affirmation

Simple form	V-ing form
I ought to sit you ought to sit she ought to sit we ought to sit you ought to sit they ought to sit	I ought to be sitting you ought to be sitting she ought to be sitting we ought to be sitting you ought to be sitting they ought to be sitting
Perfect	V-ing perfect
I ought to have sat you ought to have sat she ought to have sat we ought to have sat you ought to have sat they ought to have sat	I ought to have been sitting you ought to have been sitting she ought to have been sitting we ought to have been sitting you ought to have been sitting they ought to have been sitting

Negation

Simple form	V-ing form
I oughtn't to sit you oughtn't to sit she oughtn't to sit we oughtn't to sit you oughtn't to sit they oughtn't to sit	I oughtn't to be sitting you oughtn't to be sitting she oughtn't to be sitting we oughtn't to be sitting you oughtn't to be sitting they oughtn't to be sitting
Perfect	V-ing perfect
I oughtn't to have sat you oughtn't to have sat she oughtn't to have sat we oughtn't to have sat you oughtn't to have sat they oughtn't to have sat	I oughtn't to have been sitting you oughtn't to have been sitting she oughtn't to have been sitting we oughtn't to have been sitting you oughtn't to have been sitting they oughtn't to have been sitting

Interrogative form

Simple form	V-ing form
ought to I sit? ought to you sit? ought to she sit? ought to we sit? ought to you sit? ought to they sit?	ought to I be sitting? ought to you be sitting? ought to she be sitting? ought to we be sitting? ought to you be sitting? ought to they be sitting?
Perfect	V-ing perfect
ought to I have sat? ought to you have sat? ought to she have sat? ought to we have sat? ought to you have sat? ought to they have sat?	ought to I have been sitting? ought to you have been sitting? ought to she have been sitting? ought to we have been sitting? ought to you have been sitting? ought to they have been sitting?

Interro-negative form

Simple form	V-ing form
oughtn't I to sit? oughtn't you to sit? oughtn't she to sit? oughtn't we to sit? oughtn't you to sit? oughtn't they to sit?	oughtn't I to be sitting? oughtn't you to be sitting? oughtn't she to be sitting? oughtn't we to be sitting? oughtn't you to be sitting? oughtn't they to be sitting?
Perfect	V-ing perfect
oughtn't I to have sat? oughtn't you to have sat? oughtn't she to have sat? oughtn't we to have sat? oughtn't you to have sat? oughtn't they to have sat?	oughtn't I to have been sitting? oughtn't you to have been sitting? oughtn't she to have been sitting? oughtn't we to have been sitting? oughtn't you to have been sitting? oughtn't they to have been sitting?