English verb conjugation
OUGHT TO CHAIR

Regular verb: chair - chaired - chaired

Affirmation

Simple form	V-ing form
I ought to chair you ought to chair he ought to chair we ought to chair you ought to chair they ought to chair	I ought to be chairing you ought to be chairing he ought to be chairing we ought to be chairing you ought to be chairing they ought to be chairing
Perfect	V-ing perfect
I ought to have chaired you ought to have chaired he ought to have chaired we ought to have chaired you ought to have chaired they ought to have chaired	I ought to have been chairing you ought to have been chairing he ought to have been chairing we ought to have been chairing you ought to have been chairing they ought to have been chairing

Negation

Simple form	V-ing form
I oughtn't to chair you oughtn't to chair he oughtn't to chair we oughtn't to chair you oughtn't to chair they oughtn't to chair	I oughtn't to be chairing you oughtn't to be chairing he oughtn't to be chairing we oughtn't to be chairing you oughtn't to be chairing they oughtn't to be chairing
Perfect	V-ing perfect
I oughtn't to have chaired you oughtn't to have chaired he oughtn't to have chaired we oughtn't to have chaired you oughtn't to have chaired they oughtn't to have chaired	I oughtn't to have been chairing you oughtn't to have been chairing he oughtn't to have been chairing we oughtn't to have been chairing you oughtn't to have been chairing they oughtn't to have been chairing

Interrogative form

Simple form	V-ing form
ought to I chair? ought to you chair? ought to he chair? ought to we chair? ought to you chair? ought to they chair?	ought to I be chairing? ought to you be chairing? ought to he be chairing? ought to we be chairing? ought to you be chairing? ought to they be chairing?
Perfect	V-ing perfect
ought to I have chaired? ought to you have chaired? ought to he have chaired? ought to we have chaired? ought to you have chaired? ought to they have chaired?	ought to I have been chairing? ought to you have been chairing? ought to he have been chairing? ought to we have been chairing? ought to you have been chairing? ought to they have been chairing?

Interro-negative form

Simple form	V-ing form
oughtn't I to chair? oughtn't you to chair? oughtn't he to chair? oughtn't we to chair? oughtn't you to chair? oughtn't they to chair?	oughtn't I to be chairing? oughtn't you to be chairing? oughtn't he to be chairing? oughtn't we to be chairing? oughtn't you to be chairing? oughtn't they to be chairing?
Perfect	V-ing perfect
oughtn't I to have chaired? oughtn't you to have chaired? oughtn't he to have chaired? oughtn't we to have chaired? oughtn't you to have chaired? oughtn't they to have chaired?	oughtn't I to have been chairing? oughtn't you to have been chairing? oughtn't he to have been chairing? oughtn't we to have been chairing? oughtn't you to have been chairing? oughtn't they to have been chairing?