English verb conjugation
SHOULD GRATE

Regular verb: grate - grated - grated

Affirmation

Simple form	V-ing form
I should grate you should grate he should grate we should grate you should grate they should grate	I should be grating you should be grating he should be grating we should be grating you should be grating they should be grating
Perfect	V-ing perfect
I should have grated you should have grated he should have grated we should have grated you should have grated they should have grated	I should have been grating you should have been grating he should have been grating we should have been grating you should have been grating they should have been grating

Negation

Simple form	V-ing form
I should not grate you should not grate he should not grate we should not grate you should not grate they should not grate	I should not be grating you should not be grating he should not be grating we should not be grating you should not be grating they should not be grating
Perfect	V-ing perfect
I should not have grated you should not have grated he should not have grated we should not have grated you should not have grated they should not have grated	I should not have been grating you should not have been grating he should not have been grating we should not have been grating you should not have been grating they should not have been grating

Interrogative form

Simple form	V-ing form
should I grate? should you grate? should he grate? should we grate? should you grate? should they grate?	should I be grating? should you be grating? should he be grating? should we be grating? should you be grating? should they be grating?
Perfect	V-ing perfect
should I have grated? should you have grated? should he have grated? should we have grated? should you have grated? should they have grated?	should I have been grating? should you have been grating? should he have been grating? should we have been grating? should you have been grating? should they have been grating?

Interro-negative form

Simple form	V-ing form
should I not grate? should you not grate? should he not grate? should we not grate? should you not grate? should they not grate?	should I not be grating? should you not be grating? should he not be grating? should we not be grating? should you not be grating? should they not be grating?
Perfect	V-ing perfect
should I not have grated? should you not have grated? should he not have grated? should we not have grated? should you not have grated? should they not have grated?	should I not have been grating? should you not have been grating? should he not have been grating? should we not have been grating? should you not have been grating? should they not have been grating?