English verb conjugation
SHOULD TREPHINE

Regular verb: trephine - trephined - trephined

Affirmation

Simple form	V-ing form
I should trephine you should trephine he should trephine we should trephine you should trephine they should trephine	I should be trephining you should be trephining he should be trephining we should be trephining you should be trephining they should be trephining
Perfect	V-ing perfect
I should have trephined you should have trephined he should have trephined we should have trephined you should have trephined they should have trephined	I should have been trephining you should have been trephining he should have been trephining we should have been trephining you should have been trephining they should have been trephining

Negation

Simple form	V-ing form
I should not trephine you should not trephine he should not trephine we should not trephine you should not trephine they should not trephine	I should not be trephining you should not be trephining he should not be trephining we should not be trephining you should not be trephining they should not be trephining
Perfect	V-ing perfect
I should not have trephined you should not have trephined he should not have trephined we should not have trephined you should not have trephined they should not have trephined	I should not have been trephining you should not have been trephining he should not have been trephining we should not have been trephining you should not have been trephining they should not have been trephining

Interrogative form

Simple form	V-ing form
should I trephine? should you trephine? should he trephine? should we trephine? should you trephine? should they trephine?	should I be trephining? should you be trephining? should he be trephining? should we be trephining? should you be trephining? should they be trephining?
Perfect	V-ing perfect
should I have trephined? should you have trephined? should he have trephined? should we have trephined? should you have trephined? should they have trephined?	should I have been trephining? should you have been trephining? should he have been trephining? should we have been trephining? should you have been trephining? should they have been trephining?

Interro-negative form

Simple form	V-ing form
should I not trephine? should you not trephine? should he not trephine? should we not trephine? should you not trephine? should they not trephine?	should I not be trephining? should you not be trephining? should he not be trephining? should we not be trephining? should you not be trephining? should they not be trephining?
Perfect	V-ing perfect
should I not have trephined? should you not have trephined? should he not have trephined? should we not have trephined? should you not have trephined? should they not have trephined?	should I not have been trephining? should you not have been trephining? should he not have been trephining? should we not have been trephining? should you not have been trephining? should they not have been trephining?