English verb conjugation
OUGHT TO SHUDDER

Regular verb: shudder - shuddered - shuddered

Affirmation

Simple form	V-ing form
I ought to shudder you ought to shudder he ought to shudder we ought to shudder you ought to shudder they ought to shudder	I ought to be shuddering you ought to be shuddering he ought to be shuddering we ought to be shuddering you ought to be shuddering they ought to be shuddering
Perfect	V-ing perfect
I ought to have shuddered you ought to have shuddered he ought to have shuddered we ought to have shuddered you ought to have shuddered they ought to have shuddered	I ought to have been shuddering you ought to have been shuddering he ought to have been shuddering we ought to have been shuddering you ought to have been shuddering they ought to have been shuddering

Negation

Simple form	V-ing form
I oughtn't to shudder you oughtn't to shudder he oughtn't to shudder we oughtn't to shudder you oughtn't to shudder they oughtn't to shudder	I oughtn't to be shuddering you oughtn't to be shuddering he oughtn't to be shuddering we oughtn't to be shuddering you oughtn't to be shuddering they oughtn't to be shuddering
Perfect	V-ing perfect
I oughtn't to have shuddered you oughtn't to have shuddered he oughtn't to have shuddered we oughtn't to have shuddered you oughtn't to have shuddered they oughtn't to have shuddered	I oughtn't to have been shuddering you oughtn't to have been shuddering he oughtn't to have been shuddering we oughtn't to have been shuddering you oughtn't to have been shuddering they oughtn't to have been shuddering

Interrogative form

Simple form	V-ing form
ought to I shudder? ought to you shudder? ought to he shudder? ought to we shudder? ought to you shudder? ought to they shudder?	ought to I be shuddering? ought to you be shuddering? ought to he be shuddering? ought to we be shuddering? ought to you be shuddering? ought to they be shuddering?
Perfect	V-ing perfect
ought to I have shuddered? ought to you have shuddered? ought to he have shuddered? ought to we have shuddered? ought to you have shuddered? ought to they have shuddered?	ought to I have been shuddering? ought to you have been shuddering? ought to he have been shuddering? ought to we have been shuddering? ought to you have been shuddering? ought to they have been shuddering?

Interro-negative form

Simple form	V-ing form
oughtn't I to shudder? oughtn't you to shudder? oughtn't he to shudder? oughtn't we to shudder? oughtn't you to shudder? oughtn't they to shudder?	oughtn't I to be shuddering? oughtn't you to be shuddering? oughtn't he to be shuddering? oughtn't we to be shuddering? oughtn't you to be shuddering? oughtn't they to be shuddering?
Perfect	V-ing perfect
oughtn't I to have shuddered? oughtn't you to have shuddered? oughtn't he to have shuddered? oughtn't we to have shuddered? oughtn't you to have shuddered? oughtn't they to have shuddered?	oughtn't I to have been shuddering? oughtn't you to have been shuddering? oughtn't he to have been shuddering? oughtn't we to have been shuddering? oughtn't you to have been shuddering? oughtn't they to have been shuddering?