ought to invalid
Regular verb: invalid - invalided- invalided

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to invalid
you ought to invalid
she ought to invalid
we ought to invalid
you ought to invalid
they ought to invalid 	I ought to be invaliding
you ought to be invaliding
she ought to be invaliding
we ought to be invaliding
you ought to be invaliding
they ought to be invaliding	I ought to have invalided
you ought to have invalided
she ought to have invalided
we ought to have invalided
you ought to have invalided
they ought to have invalided	I ought to have been invaliding
you ought to have been invaliding
she ought to have been invaliding
we ought to have been invaliding
you ought to have been invaliding
they ought to have been invaliding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to invalid
you oughtn't to invalid
she oughtn't to invalid
we oughtn't to invalid
you oughtn't to invalid
they oughtn't to invalid 	I oughtn't to be invaliding
you oughtn't to be invaliding
she oughtn't to be invaliding
we oughtn't to be invaliding
you oughtn't to be invaliding
they oughtn't to be invaliding	I oughtn't to have invalided
you oughtn't to have invalided
she oughtn't to have invalided
we oughtn't to have invalided
you oughtn't to have invalided
they oughtn't to have invalided	I oughtn't to have been invaliding
you oughtn't to have been invaliding
she oughtn't to have been invaliding
we oughtn't to have been invaliding
you oughtn't to have been invaliding
they oughtn't to have been invaliding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I invalid?
ought to you invalid?
ought to she invalid?
ought to we invalid?
ought to you invalid?
ought to they invalid? 	ought to I be invaliding?
ought to you be invaliding?
ought to she be invaliding?
ought to we be invaliding?
ought to you be invaliding?
ought to they be invaliding? 	ought to I have invalided?
ought to you have invalided?
ought to she have invalided?
ought to we have invalided?
ought to you have invalided?
ought to they have invalided? 	ought to I have been invaliding?
ought to you have been invaliding?
ought to she have been invaliding?
ought to we have been invaliding?
ought to you have been invaliding?
ought to they have been invaliding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to invalid?
oughtn't you to invalid?
oughtn't she to invalid?
oughtn't we to invalid?
oughtn't you to invalid?
oughtn't they to invalid? 	oughtn't I to be invaliding?
oughtn't you to be invaliding?
oughtn't she to be invaliding?
oughtn't we to be invaliding?
oughtn't you to be invaliding?
oughtn't they to be invaliding? 	oughtn't I to have invalided?
oughtn't you to have invalided?
oughtn't she to have invalided?
oughtn't we to have invalided?
oughtn't you to have invalided?
oughtn't they to have invalided? 	oughtn't I to have been invaliding?
oughtn't you to have been invaliding?
oughtn't she to have been invaliding?
oughtn't we to have been invaliding?
oughtn't you to have been invaliding?
oughtn't they to have been invaliding?