ought to misunderstand
Irregular verb: misunderstand - misunderstood- misunderstood

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to misunderstand
you ought to misunderstand
she ought to misunderstand
we ought to misunderstand
you ought to misunderstand
they ought to misunderstand 	I ought to be misunderstanding
you ought to be misunderstanding
she ought to be misunderstanding
we ought to be misunderstanding
you ought to be misunderstanding
they ought to be misunderstanding	I ought to have misunderstood
you ought to have misunderstood
she ought to have misunderstood
we ought to have misunderstood
you ought to have misunderstood
they ought to have misunderstood	I ought to have been misunderstanding
you ought to have been misunderstanding
she ought to have been misunderstanding
we ought to have been misunderstanding
you ought to have been misunderstanding
they ought to have been misunderstanding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to misunderstand
you oughtn't to misunderstand
she oughtn't to misunderstand
we oughtn't to misunderstand
you oughtn't to misunderstand
they oughtn't to misunderstand 	I oughtn't to be misunderstanding
you oughtn't to be misunderstanding
she oughtn't to be misunderstanding
we oughtn't to be misunderstanding
you oughtn't to be misunderstanding
they oughtn't to be misunderstanding	I oughtn't to have misunderstood
you oughtn't to have misunderstood
she oughtn't to have misunderstood
we oughtn't to have misunderstood
you oughtn't to have misunderstood
they oughtn't to have misunderstood	I oughtn't to have been misunderstanding
you oughtn't to have been misunderstanding
she oughtn't to have been misunderstanding
we oughtn't to have been misunderstanding
you oughtn't to have been misunderstanding
they oughtn't to have been misunderstanding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I misunderstand?
ought to you misunderstand?
ought to she misunderstand?
ought to we misunderstand?
ought to you misunderstand?
ought to they misunderstand? 	ought to I be misunderstanding?
ought to you be misunderstanding?
ought to she be misunderstanding?
ought to we be misunderstanding?
ought to you be misunderstanding?
ought to they be misunderstanding? 	ought to I have misunderstood?
ought to you have misunderstood?
ought to she have misunderstood?
ought to we have misunderstood?
ought to you have misunderstood?
ought to they have misunderstood? 	ought to I have been misunderstanding?
ought to you have been misunderstanding?
ought to she have been misunderstanding?
ought to we have been misunderstanding?
ought to you have been misunderstanding?
ought to they have been misunderstanding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to misunderstand?
oughtn't you to misunderstand?
oughtn't she to misunderstand?
oughtn't we to misunderstand?
oughtn't you to misunderstand?
oughtn't they to misunderstand? 	oughtn't I to be misunderstanding?
oughtn't you to be misunderstanding?
oughtn't she to be misunderstanding?
oughtn't we to be misunderstanding?
oughtn't you to be misunderstanding?
oughtn't they to be misunderstanding? 	oughtn't I to have misunderstood?
oughtn't you to have misunderstood?
oughtn't she to have misunderstood?
oughtn't we to have misunderstood?
oughtn't you to have misunderstood?
oughtn't they to have misunderstood? 	oughtn't I to have been misunderstanding?
oughtn't you to have been misunderstanding?
oughtn't she to have been misunderstanding?
oughtn't we to have been misunderstanding?
oughtn't you to have been misunderstanding?
oughtn't they to have been misunderstanding?