English verb conjugation
OUGHT TO VOUCH

Regular verb: vouch - vouched - vouched

Affirmation

Simple form	V-ing form
I ought to vouch you ought to vouch he ought to vouch we ought to vouch you ought to vouch they ought to vouch	I ought to be vouching you ought to be vouching he ought to be vouching we ought to be vouching you ought to be vouching they ought to be vouching
Perfect	V-ing perfect
I ought to have vouched you ought to have vouched he ought to have vouched we ought to have vouched you ought to have vouched they ought to have vouched	I ought to have been vouching you ought to have been vouching he ought to have been vouching we ought to have been vouching you ought to have been vouching they ought to have been vouching

Negation

Simple form	V-ing form
I oughtn't to vouch you oughtn't to vouch he oughtn't to vouch we oughtn't to vouch you oughtn't to vouch they oughtn't to vouch	I oughtn't to be vouching you oughtn't to be vouching he oughtn't to be vouching we oughtn't to be vouching you oughtn't to be vouching they oughtn't to be vouching
Perfect	V-ing perfect
I oughtn't to have vouched you oughtn't to have vouched he oughtn't to have vouched we oughtn't to have vouched you oughtn't to have vouched they oughtn't to have vouched	I oughtn't to have been vouching you oughtn't to have been vouching he oughtn't to have been vouching we oughtn't to have been vouching you oughtn't to have been vouching they oughtn't to have been vouching

Interrogative form

Simple form	V-ing form
ought to I vouch? ought to you vouch? ought to he vouch? ought to we vouch? ought to you vouch? ought to they vouch?	ought to I be vouching? ought to you be vouching? ought to he be vouching? ought to we be vouching? ought to you be vouching? ought to they be vouching?
Perfect	V-ing perfect
ought to I have vouched? ought to you have vouched? ought to he have vouched? ought to we have vouched? ought to you have vouched? ought to they have vouched?	ought to I have been vouching? ought to you have been vouching? ought to he have been vouching? ought to we have been vouching? ought to you have been vouching? ought to they have been vouching?

Interro-negative form

Simple form	V-ing form
oughtn't I to vouch? oughtn't you to vouch? oughtn't he to vouch? oughtn't we to vouch? oughtn't you to vouch? oughtn't they to vouch?	oughtn't I to be vouching? oughtn't you to be vouching? oughtn't he to be vouching? oughtn't we to be vouching? oughtn't you to be vouching? oughtn't they to be vouching?
Perfect	V-ing perfect
oughtn't I to have vouched? oughtn't you to have vouched? oughtn't he to have vouched? oughtn't we to have vouched? oughtn't you to have vouched? oughtn't they to have vouched?	oughtn't I to have been vouching? oughtn't you to have been vouching? oughtn't he to have been vouching? oughtn't we to have been vouching? oughtn't you to have been vouching? oughtn't they to have been vouching?