English verb conjugation
SHOULD PRESHARPEN

Regular verb: presharpen - presharpened - presharpened

Affirmation

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

Negation

Simple form	V-ing form
I should not presharpen you should not presharpen he should not presharpen we should not presharpen you should not presharpen they should not presharpen	I should not be presharpening you should not be presharpening he should not be presharpening we should not be presharpening you should not be presharpening they should not be presharpening
Perfect	V-ing perfect
I should not have presharpened you should not have presharpened he should not have presharpened we should not have presharpened you should not have presharpened they should not have presharpened	I should not have been presharpening you should not have been presharpening he should not have been presharpening we should not have been presharpening you should not have been presharpening they should not 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
should I not presharpen? should you not presharpen? should he not presharpen? should we not presharpen? should you not presharpen? should they not presharpen?	should I not be presharpening? should you not be presharpening? should he not be presharpening? should we not be presharpening? should you not be presharpening? should they not be presharpening?
Perfect	V-ing perfect
should I not have presharpened? should you not have presharpened? should he not have presharpened? should we not have presharpened? should you not have presharpened? should they not have presharpened?	should I not have been presharpening? should you not have been presharpening? should he not have been presharpening? should we not have been presharpening? should you not have been presharpening? should they not have been presharpening?