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
he 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
he 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
he 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
he 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 ought not to blunder
you ought not to blunder
he ought not to blunder
we ought not to blunder
you ought not to blunder
they ought not to blunder 	I ought not to blundering
you ought not to blundering
he ought not to blundering
we ought not to blundering
you ought not to blundering
they ought not to blundering	I ought not to have blundered
you ought not to have blundered
he ought not to have blundered
we ought not to have blundered
you ought not to have blundered
they ought not to have blundered	I ought not to have been blundering
you ought not to have been blundering
he ought not to have been blundering
we ought not to have been blundering
you ought not to have been blundering
they ought not 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 he 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 he 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 he 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 he 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 	
ought I not to blunder?
ought you not to blunder?
ought he not to blunder?
ought we not to blunder?
ought you not to blunder?
ought they not to blunder? 	ought I not to be blundering?
ought you not to be blundering?
ought he not to be blundering?
ought we not to be blundering?
ought you not to be blundering?
ought they not to be blundering? 	ought I not to have blundered?
ought you not to have blundered?
ought he not to have blundered?
ought we not to have blundered?
ought you not to have blundered?
ought they not to have blundered? 	ought I not to have been blundering?
ought you not to have been blundering?
ought he not to have been blundering?
ought we not to have been blundering?
ought you not to have been blundering?
ought they not to have been blundering?