English verb conjugation
OUGHT TO PERCUSS

Regular verb: percuss - percussed - percussed

Affirmation

Simple form	V-ing form
I ought to percuss you ought to percuss he ought to percuss we ought to percuss you ought to percuss they ought to percuss	I ought to be percussing you ought to be percussing he ought to be percussing we ought to be percussing you ought to be percussing they ought to be percussing
Perfect	V-ing perfect
I ought to have percussed you ought to have percussed he ought to have percussed we ought to have percussed you ought to have percussed they ought to have percussed	I ought to have been percussing you ought to have been percussing he ought to have been percussing we ought to have been percussing you ought to have been percussing they ought to have been percussing

Negation

Simple form	V-ing form
I oughtn't to percuss you oughtn't to percuss he oughtn't to percuss we oughtn't to percuss you oughtn't to percuss they oughtn't to percuss	I oughtn't to be percussing you oughtn't to be percussing he oughtn't to be percussing we oughtn't to be percussing you oughtn't to be percussing they oughtn't to be percussing
Perfect	V-ing perfect
I oughtn't to have percussed you oughtn't to have percussed he oughtn't to have percussed we oughtn't to have percussed you oughtn't to have percussed they oughtn't to have percussed	I oughtn't to have been percussing you oughtn't to have been percussing he oughtn't to have been percussing we oughtn't to have been percussing you oughtn't to have been percussing they oughtn't to have been percussing

Interrogative form

Simple form	V-ing form
ought to I percuss? ought to you percuss? ought to he percuss? ought to we percuss? ought to you percuss? ought to they percuss?	ought to I be percussing? ought to you be percussing? ought to he be percussing? ought to we be percussing? ought to you be percussing? ought to they be percussing?
Perfect	V-ing perfect
ought to I have percussed? ought to you have percussed? ought to he have percussed? ought to we have percussed? ought to you have percussed? ought to they have percussed?	ought to I have been percussing? ought to you have been percussing? ought to he have been percussing? ought to we have been percussing? ought to you have been percussing? ought to they have been percussing?

Interro-negative form

Simple form	V-ing form
oughtn't I to percuss? oughtn't you to percuss? oughtn't he to percuss? oughtn't we to percuss? oughtn't you to percuss? oughtn't they to percuss?	oughtn't I to be percussing? oughtn't you to be percussing? oughtn't he to be percussing? oughtn't we to be percussing? oughtn't you to be percussing? oughtn't they to be percussing?
Perfect	V-ing perfect
oughtn't I to have percussed? oughtn't you to have percussed? oughtn't he to have percussed? oughtn't we to have percussed? oughtn't you to have percussed? oughtn't they to have percussed?	oughtn't I to have been percussing? oughtn't you to have been percussing? oughtn't he to have been percussing? oughtn't we to have been percussing? oughtn't you to have been percussing? oughtn't they to have been percussing?