English verb conjugation
SHOULD UNDERMINE

Regular verb: undermine - undermined - undermined

Affirmation

Simple form	V-ing form
I should undermine you should undermine he should undermine we should undermine you should undermine they should undermine	I should be undermining you should be undermining he should be undermining we should be undermining you should be undermining they should be undermining
Perfect	V-ing perfect
I should have undermined you should have undermined he should have undermined we should have undermined you should have undermined they should have undermined	I should have been undermining you should have been undermining he should have been undermining we should have been undermining you should have been undermining they should have been undermining

Negation

Simple form	V-ing form
I should not undermine you should not undermine he should not undermine we should not undermine you should not undermine they should not undermine	I should not be undermining you should not be undermining he should not be undermining we should not be undermining you should not be undermining they should not be undermining
Perfect	V-ing perfect
I should not have undermined you should not have undermined he should not have undermined we should not have undermined you should not have undermined they should not have undermined	I should not have been undermining you should not have been undermining he should not have been undermining we should not have been undermining you should not have been undermining they should not have been undermining

Interrogative form

Simple form	V-ing form
should I undermine? should you undermine? should he undermine? should we undermine? should you undermine? should they undermine?	should I be undermining? should you be undermining? should he be undermining? should we be undermining? should you be undermining? should they be undermining?
Perfect	V-ing perfect
should I have undermined? should you have undermined? should he have undermined? should we have undermined? should you have undermined? should they have undermined?	should I have been undermining? should you have been undermining? should he have been undermining? should we have been undermining? should you have been undermining? should they have been undermining?

Interro-negative form

Simple form	V-ing form
should I not undermine? should you not undermine? should he not undermine? should we not undermine? should you not undermine? should they not undermine?	should I not be undermining? should you not be undermining? should he not be undermining? should we not be undermining? should you not be undermining? should they not be undermining?
Perfect	V-ing perfect
should I not have undermined? should you not have undermined? should he not have undermined? should we not have undermined? should you not have undermined? should they not have undermined?	should I not have been undermining? should you not have been undermining? should he not have been undermining? should we not have been undermining? should you not have been undermining? should they not have been undermining?