English verb conjugation
OUGHT TO QUAFF

Regular verb: quaff - quaffed - quaffed

Affirmation

Simple form	V-ing form
I ought to quaff you ought to quaff he ought to quaff we ought to quaff you ought to quaff they ought to quaff	I ought to be quaffing you ought to be quaffing he ought to be quaffing we ought to be quaffing you ought to be quaffing they ought to be quaffing
Perfect	V-ing perfect
I ought to have quaffed you ought to have quaffed he ought to have quaffed we ought to have quaffed you ought to have quaffed they ought to have quaffed	I ought to have been quaffing you ought to have been quaffing he ought to have been quaffing we ought to have been quaffing you ought to have been quaffing they ought to have been quaffing

Negation

Simple form	V-ing form
I ought not to quaff you ought not to quaff he ought not to quaff we ought not to quaff you ought not to quaff they ought not to quaff	I ought not to quaffing you ought not to quaffing he ought not to quaffing we ought not to quaffing you ought not to quaffing they ought not to quaffing
Perfect	V-ing perfect
I ought not to have quaffed you ought not to have quaffed he ought not to have quaffed we ought not to have quaffed you ought not to have quaffed they ought not to have quaffed	I ought not to have been quaffing you ought not to have been quaffing he ought not to have been quaffing we ought not to have been quaffing you ought not to have been quaffing they ought not to have been quaffing

Interrogative form

Simple form	V-ing form
ought to I quaff? ought to you quaff? ought to he quaff? ought to we quaff? ought to you quaff? ought to they quaff?	ought to I be quaffing? ought to you be quaffing? ought to he be quaffing? ought to we be quaffing? ought to you be quaffing? ought to they be quaffing?
Perfect	V-ing perfect
ought to I have quaffed? ought to you have quaffed? ought to he have quaffed? ought to we have quaffed? ought to you have quaffed? ought to they have quaffed?	ought to I have been quaffing? ought to you have been quaffing? ought to he have been quaffing? ought to we have been quaffing? ought to you have been quaffing? ought to they have been quaffing?

Interro-negative form

Simple form	V-ing form
ought I not to quaff? ought you not to quaff? ought he not to quaff? ought we not to quaff? ought you not to quaff? ought they not to quaff?	ought I not to be quaffing? ought you not to be quaffing? ought he not to be quaffing? ought we not to be quaffing? ought you not to be quaffing? ought they not to be quaffing?
Perfect	V-ing perfect
ought I not to have quaffed? ought you not to have quaffed? ought he not to have quaffed? ought we not to have quaffed? ought you not to have quaffed? ought they not to have quaffed?	ought I not to have been quaffing? ought you not to have been quaffing? ought he not to have been quaffing? ought we not to have been quaffing? ought you not to have been quaffing? ought they not to have been quaffing?