English verb conjugation
SHOULD PRESHARPEN

Regular verb: presharpen - presharpened - presharpened

Affirmation

Simple form	V-ing form
I'd presharpen you'd presharpen he'd presharpen we'd presharpen you'd presharpen they'd presharpen	I'd be presharpening you'd be presharpening he'd be presharpening we'd be presharpening you'd be presharpening they'd be presharpening
Perfect	V-ing perfect
I should've presharpened you should've presharpened he should've presharpened we should've presharpened you should've presharpened they should've presharpened	I should've been presharpening you should've been presharpening he should've been presharpening we should've been presharpening you should've been presharpening they should've been presharpening

Negation

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

Interrogative form

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

Interro-negative form

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