English verb conjugation
OUGHT TO SAP

Regular verb: sap - sapped - sapped

Affirmation

Simple form	V-ing form
I ought to sap you ought to sap he ought to sap we ought to sap you ought to sap they ought to sap	I ought to be sapping you ought to be sapping he ought to be sapping we ought to be sapping you ought to be sapping they ought to be sapping
Perfect	V-ing perfect
I ought to have sapped you ought to have sapped he ought to have sapped we ought to have sapped you ought to have sapped they ought to have sapped	I ought to have been sapping you ought to have been sapping he ought to have been sapping we ought to have been sapping you ought to have been sapping they ought to have been sapping

Negation

Simple form	V-ing form
I oughtn't to sap you oughtn't to sap he oughtn't to sap we oughtn't to sap you oughtn't to sap they oughtn't to sap	I oughtn't to be sapping you oughtn't to be sapping he oughtn't to be sapping we oughtn't to be sapping you oughtn't to be sapping they oughtn't to be sapping
Perfect	V-ing perfect
I oughtn't to have sapped you oughtn't to have sapped he oughtn't to have sapped we oughtn't to have sapped you oughtn't to have sapped they oughtn't to have sapped	I oughtn't to have been sapping you oughtn't to have been sapping he oughtn't to have been sapping we oughtn't to have been sapping you oughtn't to have been sapping they oughtn't to have been sapping

Interrogative form

Simple form	V-ing form
ought to I sap? ought to you sap? ought to he sap? ought to we sap? ought to you sap? ought to they sap?	ought to I be sapping? ought to you be sapping? ought to he be sapping? ought to we be sapping? ought to you be sapping? ought to they be sapping?
Perfect	V-ing perfect
ought to I have sapped? ought to you have sapped? ought to he have sapped? ought to we have sapped? ought to you have sapped? ought to they have sapped?	ought to I have been sapping? ought to you have been sapping? ought to he have been sapping? ought to we have been sapping? ought to you have been sapping? ought to they have been sapping?

Interro-negative form

Simple form	V-ing form
oughtn't I to sap? oughtn't you to sap? oughtn't he to sap? oughtn't we to sap? oughtn't you to sap? oughtn't they to sap?	oughtn't I to be sapping? oughtn't you to be sapping? oughtn't he to be sapping? oughtn't we to be sapping? oughtn't you to be sapping? oughtn't they to be sapping?
Perfect	V-ing perfect
oughtn't I to have sapped? oughtn't you to have sapped? oughtn't he to have sapped? oughtn't we to have sapped? oughtn't you to have sapped? oughtn't they to have sapped?	oughtn't I to have been sapping? oughtn't you to have been sapping? oughtn't he to have been sapping? oughtn't we to have been sapping? oughtn't you to have been sapping? oughtn't they to have been sapping?