English verb conjugation
OUGHT TO PIFFLE

Regular verb: piffle - piffled - piffled

Affirmation

Simple form	V-ing form
I ought to piffle you ought to piffle he ought to piffle we ought to piffle you ought to piffle they ought to piffle	I ought to be piffling you ought to be piffling he ought to be piffling we ought to be piffling you ought to be piffling they ought to be piffling
Perfect	V-ing perfect
I ought to have piffled you ought to have piffled he ought to have piffled we ought to have piffled you ought to have piffled they ought to have piffled	I ought to have been piffling you ought to have been piffling he ought to have been piffling we ought to have been piffling you ought to have been piffling they ought to have been piffling

Negation

Simple form	V-ing form
I oughtn't to piffle you oughtn't to piffle he oughtn't to piffle we oughtn't to piffle you oughtn't to piffle they oughtn't to piffle	I oughtn't to be piffling you oughtn't to be piffling he oughtn't to be piffling we oughtn't to be piffling you oughtn't to be piffling they oughtn't to be piffling
Perfect	V-ing perfect
I oughtn't to have piffled you oughtn't to have piffled he oughtn't to have piffled we oughtn't to have piffled you oughtn't to have piffled they oughtn't to have piffled	I oughtn't to have been piffling you oughtn't to have been piffling he oughtn't to have been piffling we oughtn't to have been piffling you oughtn't to have been piffling they oughtn't to have been piffling

Interrogative form

Simple form	V-ing form
ought to I piffle? ought to you piffle? ought to he piffle? ought to we piffle? ought to you piffle? ought to they piffle?	ought to I be piffling? ought to you be piffling? ought to he be piffling? ought to we be piffling? ought to you be piffling? ought to they be piffling?
Perfect	V-ing perfect
ought to I have piffled? ought to you have piffled? ought to he have piffled? ought to we have piffled? ought to you have piffled? ought to they have piffled?	ought to I have been piffling? ought to you have been piffling? ought to he have been piffling? ought to we have been piffling? ought to you have been piffling? ought to they have been piffling?

Interro-negative form

Simple form	V-ing form
oughtn't I to piffle? oughtn't you to piffle? oughtn't he to piffle? oughtn't we to piffle? oughtn't you to piffle? oughtn't they to piffle?	oughtn't I to be piffling? oughtn't you to be piffling? oughtn't he to be piffling? oughtn't we to be piffling? oughtn't you to be piffling? oughtn't they to be piffling?
Perfect	V-ing perfect
oughtn't I to have piffled? oughtn't you to have piffled? oughtn't he to have piffled? oughtn't we to have piffled? oughtn't you to have piffled? oughtn't they to have piffled?	oughtn't I to have been piffling? oughtn't you to have been piffling? oughtn't he to have been piffling? oughtn't we to have been piffling? oughtn't you to have been piffling? oughtn't they to have been piffling?