ought to sit
Irregular verb: sit - sat- sat

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
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? 	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?