ought to invert
Regular verb: invert - inverted- inverted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to invert
you ought to invert
she ought to invert
we ought to invert
you ought to invert
they ought to invert 	I ought to be inverting
you ought to be inverting
she ought to be inverting
we ought to be inverting
you ought to be inverting
they ought to be inverting	I ought to have inverted
you ought to have inverted
she ought to have inverted
we ought to have inverted
you ought to have inverted
they ought to have inverted	I ought to have been inverting
you ought to have been inverting
she ought to have been inverting
we ought to have been inverting
you ought to have been inverting
they ought to have been inverting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to invert
you oughtn't to invert
she oughtn't to invert
we oughtn't to invert
you oughtn't to invert
they oughtn't to invert 	I oughtn't to be inverting
you oughtn't to be inverting
she oughtn't to be inverting
we oughtn't to be inverting
you oughtn't to be inverting
they oughtn't to be inverting	I oughtn't to have inverted
you oughtn't to have inverted
she oughtn't to have inverted
we oughtn't to have inverted
you oughtn't to have inverted
they oughtn't to have inverted	I oughtn't to have been inverting
you oughtn't to have been inverting
she oughtn't to have been inverting
we oughtn't to have been inverting
you oughtn't to have been inverting
they oughtn't to have been inverting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I invert?
ought to you invert?
ought to she invert?
ought to we invert?
ought to you invert?
ought to they invert? 	ought to I be inverting?
ought to you be inverting?
ought to she be inverting?
ought to we be inverting?
ought to you be inverting?
ought to they be inverting? 	ought to I have inverted?
ought to you have inverted?
ought to she have inverted?
ought to we have inverted?
ought to you have inverted?
ought to they have inverted? 	ought to I have been inverting?
ought to you have been inverting?
ought to she have been inverting?
ought to we have been inverting?
ought to you have been inverting?
ought to they have been inverting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to invert?
oughtn't you to invert?
oughtn't she to invert?
oughtn't we to invert?
oughtn't you to invert?
oughtn't they to invert? 	oughtn't I to be inverting?
oughtn't you to be inverting?
oughtn't she to be inverting?
oughtn't we to be inverting?
oughtn't you to be inverting?
oughtn't they to be inverting? 	oughtn't I to have inverted?
oughtn't you to have inverted?
oughtn't she to have inverted?
oughtn't we to have inverted?
oughtn't you to have inverted?
oughtn't they to have inverted? 	oughtn't I to have been inverting?
oughtn't you to have been inverting?
oughtn't she to have been inverting?
oughtn't we to have been inverting?
oughtn't you to have been inverting?
oughtn't they to have been inverting?