I should discard you should discard she should discard we should discard you should discard they should discard
V-ing form
I should be discarding you should be discarding she should be discarding we should be discarding you should be discarding they should be discarding
Perfect
I should have discarded you should have discarded she should have discarded we should have discarded you should have discarded they should have discarded
V-ing perfect
I should have been discarding you should have been discarding she should have been discarding we should have been discarding you should have been discarding they should have been discarding
Negation
Simple form
I should not discard you should not discard she should not discard we should not discard you should not discard they should not discard
V-ing form
I should not be discarding you should not be discarding she should not be discarding we should not be discarding you should not be discarding they should not be discarding
Perfect
I should not have discarded you should not have discarded she should not have discarded we should not have discarded you should not have discarded they should not have discarded
V-ing perfect
I should not have been discarding you should not have been discarding she should not have been discarding we should not have been discarding you should not have been discarding they should not have been discarding
Interrogative form
Simple form
should I discard? should you discard? should she discard? should we discard? should you discard? should they discard?
V-ing form
should I be discarding? should you be discarding? should she be discarding? should we be discarding? should you be discarding? should they be discarding?
Perfect
should I have discarded? should you have discarded? should she have discarded? should we have discarded? should you have discarded? should they have discarded?
V-ing perfect
should I have been discarding? should you have been discarding? should she have been discarding? should we have been discarding? should you have been discarding? should they have been discarding?
Interro-negative form
Simple form
should I not discard? should you not discard? should she not discard? should we not discard? should you not discard? should they not discard?
V-ing form
should I not be discarding? should you not be discarding? should she not be discarding? should we not be discarding? should you not be discarding? should they not be discarding?
Perfect
should I not have discarded? should you not have discarded? should she not have discarded? should we not have discarded? should you not have discarded? should they not have discarded?
V-ing perfect
should I not have been discarding? should you not have been discarding? should she not have been discarding? should we not have been discarding? should you not have been discarding? should they not have been discarding?