English verb conjugation
SHOULD HEAD

Regular verb: head - headed - headed

Affirmation

Simple form	V-ing form
I should head you should head he should head we should head you should head they should head	I should be heading you should be heading he should be heading we should be heading you should be heading they should be heading
Perfect	V-ing perfect
I should have headed you should have headed he should have headed we should have headed you should have headed they should have headed	I should have been heading you should have been heading he should have been heading we should have been heading you should have been heading they should have been heading

Negation

Simple form	V-ing form
I should not head you should not head he should not head we should not head you should not head they should not head	I should not be heading you should not be heading he should not be heading we should not be heading you should not be heading they should not be heading
Perfect	V-ing perfect
I should not have headed you should not have headed he should not have headed we should not have headed you should not have headed they should not have headed	I should not have been heading you should not have been heading he should not have been heading we should not have been heading you should not have been heading they should not have been heading

Interrogative form

Simple form	V-ing form
should I head? should you head? should he head? should we head? should you head? should they head?	should I be heading? should you be heading? should he be heading? should we be heading? should you be heading? should they be heading?
Perfect	V-ing perfect
should I have headed? should you have headed? should he have headed? should we have headed? should you have headed? should they have headed?	should I have been heading? should you have been heading? should he have been heading? should we have been heading? should you have been heading? should they have been heading?

Interro-negative form

Simple form	V-ing form
should I not head? should you not head? should he not head? should we not head? should you not head? should they not head?	should I not be heading? should you not be heading? should he not be heading? should we not be heading? should you not be heading? should they not be heading?
Perfect	V-ing perfect
should I not have headed? should you not have headed? should he not have headed? should we not have headed? should you not have headed? should they not have headed?	should I not have been heading? should you not have been heading? should he not have been heading? should we not have been heading? should you not have been heading? should they not have been heading?