English verb conjugation
SHOULD TREPHINE

Regular verb: trephine - trephined - trephined

Affirmation

Simple form	V-ing form
I should trephine you should trephine she should trephine we should trephine you should trephine they should trephine	I should be trephining you should be trephining she 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 she 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 she 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 she 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 she 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 she 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 she 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 she trephine? should we trephine? should you trephine? should they trephine?	should I be trephining? should you be trephining? should she 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 she 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 she 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 she 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 she 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 she 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 she not have been trephining? should we not have been trephining? should you not have been trephining? should they not have been trephining?