English verb conjugation
SHOULD RUIN

Regular verb: ruin - ruined - ruined

Affirmation

Simple form	V-ing form
I should ruin you should ruin he should ruin we should ruin you should ruin they should ruin	I should be ruining you should be ruining he should be ruining we should be ruining you should be ruining they should be ruining
Perfect	V-ing perfect
I should have ruined you should have ruined he should have ruined we should have ruined you should have ruined they should have ruined	I should have been ruining you should have been ruining he should have been ruining we should have been ruining you should have been ruining they should have been ruining

Negation

Simple form	V-ing form
I should not ruin you should not ruin he should not ruin we should not ruin you should not ruin they should not ruin	I should not be ruining you should not be ruining he should not be ruining we should not be ruining you should not be ruining they should not be ruining
Perfect	V-ing perfect
I should not have ruined you should not have ruined he should not have ruined we should not have ruined you should not have ruined they should not have ruined	I should not have been ruining you should not have been ruining he should not have been ruining we should not have been ruining you should not have been ruining they should not have been ruining

Interrogative form

Simple form	V-ing form
should I ruin? should you ruin? should he ruin? should we ruin? should you ruin? should they ruin?	should I be ruining? should you be ruining? should he be ruining? should we be ruining? should you be ruining? should they be ruining?
Perfect	V-ing perfect
should I have ruined? should you have ruined? should he have ruined? should we have ruined? should you have ruined? should they have ruined?	should I have been ruining? should you have been ruining? should he have been ruining? should we have been ruining? should you have been ruining? should they have been ruining?

Interro-negative form

Simple form	V-ing form
should I not ruin? should you not ruin? should he not ruin? should we not ruin? should you not ruin? should they not ruin?	should I not be ruining? should you not be ruining? should he not be ruining? should we not be ruining? should you not be ruining? should they not be ruining?
Perfect	V-ing perfect
should I not have ruined? should you not have ruined? should he not have ruined? should we not have ruined? should you not have ruined? should they not have ruined?	should I not have been ruining? should you not have been ruining? should he not have been ruining? should we not have been ruining? should you not have been ruining? should they not have been ruining?