English verb conjugation
SHOULD BIRCH

Regular verb: birch - birched - birched

Affirmation

Simple form	V-ing form
I should birch you should birch he should birch we should birch you should birch they should birch	I should be birching you should be birching he should be birching we should be birching you should be birching they should be birching
Perfect	V-ing perfect
I should have birched you should have birched he should have birched we should have birched you should have birched they should have birched	I should have been birching you should have been birching he should have been birching we should have been birching you should have been birching they should have been birching

Negation

Simple form	V-ing form
I should not birch you should not birch he should not birch we should not birch you should not birch they should not birch	I should not be birching you should not be birching he should not be birching we should not be birching you should not be birching they should not be birching
Perfect	V-ing perfect
I should not have birched you should not have birched he should not have birched we should not have birched you should not have birched they should not have birched	I should not have been birching you should not have been birching he should not have been birching we should not have been birching you should not have been birching they should not have been birching

Interrogative form

Simple form	V-ing form
should I birch? should you birch? should he birch? should we birch? should you birch? should they birch?	should I be birching? should you be birching? should he be birching? should we be birching? should you be birching? should they be birching?
Perfect	V-ing perfect
should I have birched? should you have birched? should he have birched? should we have birched? should you have birched? should they have birched?	should I have been birching? should you have been birching? should he have been birching? should we have been birching? should you have been birching? should they have been birching?

Interro-negative form

Simple form	V-ing form
should I not birch? should you not birch? should he not birch? should we not birch? should you not birch? should they not birch?	should I not be birching? should you not be birching? should he not be birching? should we not be birching? should you not be birching? should they not be birching?
Perfect	V-ing perfect
should I not have birched? should you not have birched? should he not have birched? should we not have birched? should you not have birched? should they not have birched?	should I not have been birching? should you not have been birching? should he not have been birching? should we not have been birching? should you not have been birching? should they not have been birching?