ought to blunder
Regular verb: blunder - blundered- blundered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I ought to blunder
you ought to blunder
she ought to blunder
we ought to blunder
you ought to blunder
they ought to blunder 	I ought to be blundering
you ought to be blundering
she ought to be blundering
we ought to be blundering
you ought to be blundering
they ought to be blundering	I ought to have blundered
you ought to have blundered
she ought to have blundered
we ought to have blundered
you ought to have blundered
they ought to have blundered	I ought to have been blundering
you ought to have been blundering
she ought to have been blundering
we ought to have been blundering
you ought to have been blundering
they ought to have been blundering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I oughtn't to blunder
you oughtn't to blunder
she oughtn't to blunder
we oughtn't to blunder
you oughtn't to blunder
they oughtn't to blunder 	I oughtn't to be blundering
you oughtn't to be blundering
she oughtn't to be blundering
we oughtn't to be blundering
you oughtn't to be blundering
they oughtn't to be blundering	I oughtn't to have blundered
you oughtn't to have blundered
she oughtn't to have blundered
we oughtn't to have blundered
you oughtn't to have blundered
they oughtn't to have blundered	I oughtn't to have been blundering
you oughtn't to have been blundering
she oughtn't to have been blundering
we oughtn't to have been blundering
you oughtn't to have been blundering
they oughtn't to have been blundering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
ought to I blunder?
ought to you blunder?
ought to she blunder?
ought to we blunder?
ought to you blunder?
ought to they blunder? 	ought to I be blundering?
ought to you be blundering?
ought to she be blundering?
ought to we be blundering?
ought to you be blundering?
ought to they be blundering? 	ought to I have blundered?
ought to you have blundered?
ought to she have blundered?
ought to we have blundered?
ought to you have blundered?
ought to they have blundered? 	ought to I have been blundering?
ought to you have been blundering?
ought to she have been blundering?
ought to we have been blundering?
ought to you have been blundering?
ought to they have been blundering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
oughtn't I to blunder?
oughtn't you to blunder?
oughtn't she to blunder?
oughtn't we to blunder?
oughtn't you to blunder?
oughtn't they to blunder? 	oughtn't I to be blundering?
oughtn't you to be blundering?
oughtn't she to be blundering?
oughtn't we to be blundering?
oughtn't you to be blundering?
oughtn't they to be blundering? 	oughtn't I to have blundered?
oughtn't you to have blundered?
oughtn't she to have blundered?
oughtn't we to have blundered?
oughtn't you to have blundered?
oughtn't they to have blundered? 	oughtn't I to have been blundering?
oughtn't you to have been blundering?
oughtn't she to have been blundering?
oughtn't we to have been blundering?
oughtn't you to have been blundering?
oughtn't they to have been blundering?