ought to single
Regular verb: single - singled- singled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to single
you ought to single
she ought to single
we ought to single
you ought to single
they ought to single 	I ought to be singling
you ought to be singling
she ought to be singling
we ought to be singling
you ought to be singling
they ought to be singling	I ought to have singled
you ought to have singled
she ought to have singled
we ought to have singled
you ought to have singled
they ought to have singled	I ought to have been singling
you ought to have been singling
she ought to have been singling
we ought to have been singling
you ought to have been singling
they ought to have been singling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to single
you oughtn't to single
she oughtn't to single
we oughtn't to single
you oughtn't to single
they oughtn't to single 	I oughtn't to be singling
you oughtn't to be singling
she oughtn't to be singling
we oughtn't to be singling
you oughtn't to be singling
they oughtn't to be singling	I oughtn't to have singled
you oughtn't to have singled
she oughtn't to have singled
we oughtn't to have singled
you oughtn't to have singled
they oughtn't to have singled	I oughtn't to have been singling
you oughtn't to have been singling
she oughtn't to have been singling
we oughtn't to have been singling
you oughtn't to have been singling
they oughtn't to have been singling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I single?
ought to you single?
ought to she single?
ought to we single?
ought to you single?
ought to they single? 	ought to I be singling?
ought to you be singling?
ought to she be singling?
ought to we be singling?
ought to you be singling?
ought to they be singling? 	ought to I have singled?
ought to you have singled?
ought to she have singled?
ought to we have singled?
ought to you have singled?
ought to they have singled? 	ought to I have been singling?
ought to you have been singling?
ought to she have been singling?
ought to we have been singling?
ought to you have been singling?
ought to they have been singling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to single?
oughtn't you to single?
oughtn't she to single?
oughtn't we to single?
oughtn't you to single?
oughtn't they to single? 	oughtn't I to be singling?
oughtn't you to be singling?
oughtn't she to be singling?
oughtn't we to be singling?
oughtn't you to be singling?
oughtn't they to be singling? 	oughtn't I to have singled?
oughtn't you to have singled?
oughtn't she to have singled?
oughtn't we to have singled?
oughtn't you to have singled?
oughtn't they to have singled? 	oughtn't I to have been singling?
oughtn't you to have been singling?
oughtn't she to have been singling?
oughtn't we to have been singling?
oughtn't you to have been singling?
oughtn't they to have been singling?