I should discern you should discern he should discern we should discern you should discern they should discern
V-ing form
I should be discerning you should be discerning he should be discerning we should be discerning you should be discerning they should be discerning
Perfect
I should have discerned you should have discerned he should have discerned we should have discerned you should have discerned they should have discerned
V-ing perfect
I should have been discerning you should have been discerning he should have been discerning we should have been discerning you should have been discerning they should have been discerning
Negation
Simple form
I should not discern you should not discern he should not discern we should not discern you should not discern they should not discern
V-ing form
I should not be discerning you should not be discerning he should not be discerning we should not be discerning you should not be discerning they should not be discerning
Perfect
I should not have discerned you should not have discerned he should not have discerned we should not have discerned you should not have discerned they should not have discerned
V-ing perfect
I should not have been discerning you should not have been discerning he should not have been discerning we should not have been discerning you should not have been discerning they should not have been discerning
Interrogative form
Simple form
should I discern? should you discern? should he discern? should we discern? should you discern? should they discern?
V-ing form
should I be discerning? should you be discerning? should he be discerning? should we be discerning? should you be discerning? should they be discerning?
Perfect
should I have discerned? should you have discerned? should he have discerned? should we have discerned? should you have discerned? should they have discerned?
V-ing perfect
should I have been discerning? should you have been discerning? should he have been discerning? should we have been discerning? should you have been discerning? should they have been discerning?
Interro-negative form
Simple form
should I not discern? should you not discern? should he not discern? should we not discern? should you not discern? should they not discern?
V-ing form
should I not be discerning? should you not be discerning? should he not be discerning? should we not be discerning? should you not be discerning? should they not be discerning?
Perfect
should I not have discerned? should you not have discerned? should he not have discerned? should we not have discerned? should you not have discerned? should they not have discerned?
V-ing perfect
should I not have been discerning? should you not have been discerning? should he not have been discerning? should we not have been discerning? should you not have been discerning? should they not have been discerning?