English verb conjugation
SHOULD PREFIX

Regular verb: prefix - prefixed - prefixed

Affirmation

Simple form	V-ing form
I should prefix you should prefix he should prefix we should prefix you should prefix they should prefix	I should be prefixing you should be prefixing he should be prefixing we should be prefixing you should be prefixing they should be prefixing
Perfect	V-ing perfect
I should have prefixed you should have prefixed he should have prefixed we should have prefixed you should have prefixed they should have prefixed	I should have been prefixing you should have been prefixing he should have been prefixing we should have been prefixing you should have been prefixing they should have been prefixing

Negation

Simple form	V-ing form
I should not prefix you should not prefix he should not prefix we should not prefix you should not prefix they should not prefix	I should not be prefixing you should not be prefixing he should not be prefixing we should not be prefixing you should not be prefixing they should not be prefixing
Perfect	V-ing perfect
I should not have prefixed you should not have prefixed he should not have prefixed we should not have prefixed you should not have prefixed they should not have prefixed	I should not have been prefixing you should not have been prefixing he should not have been prefixing we should not have been prefixing you should not have been prefixing they should not have been prefixing

Interrogative form

Simple form	V-ing form
should I prefix? should you prefix? should he prefix? should we prefix? should you prefix? should they prefix?	should I be prefixing? should you be prefixing? should he be prefixing? should we be prefixing? should you be prefixing? should they be prefixing?
Perfect	V-ing perfect
should I have prefixed? should you have prefixed? should he have prefixed? should we have prefixed? should you have prefixed? should they have prefixed?	should I have been prefixing? should you have been prefixing? should he have been prefixing? should we have been prefixing? should you have been prefixing? should they have been prefixing?

Interro-negative form

Simple form	V-ing form
should I not prefix? should you not prefix? should he not prefix? should we not prefix? should you not prefix? should they not prefix?	should I not be prefixing? should you not be prefixing? should he not be prefixing? should we not be prefixing? should you not be prefixing? should they not be prefixing?
Perfect	V-ing perfect
should I not have prefixed? should you not have prefixed? should he not have prefixed? should we not have prefixed? should you not have prefixed? should they not have prefixed?	should I not have been prefixing? should you not have been prefixing? should he not have been prefixing? should we not have been prefixing? should you not have been prefixing? should they not have been prefixing?