English verb conjugation
OUGHT TO PRESHARPEN

Regular verb: presharpen - presharpened - presharpened

Affirmation

Simple form	V-ing form
I ought to presharpen you ought to presharpen he ought to presharpen we ought to presharpen you ought to presharpen they ought to presharpen	I ought to be presharpening you ought to be presharpening he ought to be presharpening we ought to be presharpening you ought to be presharpening they ought to be presharpening
Perfect	V-ing perfect
I ought to have presharpened you ought to have presharpened he ought to have presharpened we ought to have presharpened you ought to have presharpened they ought to have presharpened	I ought to have been presharpening you ought to have been presharpening he ought to have been presharpening we ought to have been presharpening you ought to have been presharpening they ought to have been presharpening

Negation

Simple form	V-ing form
I oughtn't to presharpen you oughtn't to presharpen he oughtn't to presharpen we oughtn't to presharpen you oughtn't to presharpen they oughtn't to presharpen	I oughtn't to be presharpening you oughtn't to be presharpening he oughtn't to be presharpening we oughtn't to be presharpening you oughtn't to be presharpening they oughtn't to be presharpening
Perfect	V-ing perfect
I oughtn't to have presharpened you oughtn't to have presharpened he oughtn't to have presharpened we oughtn't to have presharpened you oughtn't to have presharpened they oughtn't to have presharpened	I oughtn't to have been presharpening you oughtn't to have been presharpening he oughtn't to have been presharpening we oughtn't to have been presharpening you oughtn't to have been presharpening they oughtn't to have been presharpening

Interrogative form

Simple form	V-ing form
ought to I presharpen? ought to you presharpen? ought to he presharpen? ought to we presharpen? ought to you presharpen? ought to they presharpen?	ought to I be presharpening? ought to you be presharpening? ought to he be presharpening? ought to we be presharpening? ought to you be presharpening? ought to they be presharpening?
Perfect	V-ing perfect
ought to I have presharpened? ought to you have presharpened? ought to he have presharpened? ought to we have presharpened? ought to you have presharpened? ought to they have presharpened?	ought to I have been presharpening? ought to you have been presharpening? ought to he have been presharpening? ought to we have been presharpening? ought to you have been presharpening? ought to they have been presharpening?

Interro-negative form

Simple form	V-ing form
oughtn't I to presharpen? oughtn't you to presharpen? oughtn't he to presharpen? oughtn't we to presharpen? oughtn't you to presharpen? oughtn't they to presharpen?	oughtn't I to be presharpening? oughtn't you to be presharpening? oughtn't he to be presharpening? oughtn't we to be presharpening? oughtn't you to be presharpening? oughtn't they to be presharpening?
Perfect	V-ing perfect
oughtn't I to have presharpened? oughtn't you to have presharpened? oughtn't he to have presharpened? oughtn't we to have presharpened? oughtn't you to have presharpened? oughtn't they to have presharpened?	oughtn't I to have been presharpening? oughtn't you to have been presharpening? oughtn't he to have been presharpening? oughtn't we to have been presharpening? oughtn't you to have been presharpening? oughtn't they to have been presharpening?