I should focus you should focus he should focus we should focus you should focus they should focus
V-ing form
I should be focusing you should be focusing he should be focusing we should be focusing you should be focusing they should be focusing
Perfect
I should have focused you should have focused he should have focused we should have focused you should have focused they should have focused
V-ing perfect
I should have been focusing you should have been focusing he should have been focusing we should have been focusing you should have been focusing they should have been focusing
Negation
Simple form
I should not focus you should not focus he should not focus we should not focus you should not focus they should not focus
V-ing form
I should not be focusing you should not be focusing he should not be focusing we should not be focusing you should not be focusing they should not be focusing
Perfect
I should not have focused you should not have focused he should not have focused we should not have focused you should not have focused they should not have focused
V-ing perfect
I should not have been focusing you should not have been focusing he should not have been focusing we should not have been focusing you should not have been focusing they should not have been focusing
Interrogative form
Simple form
should I focus? should you focus? should he focus? should we focus? should you focus? should they focus?
V-ing form
should I be focusing? should you be focusing? should he be focusing? should we be focusing? should you be focusing? should they be focusing?
Perfect
should I have focused? should you have focused? should he have focused? should we have focused? should you have focused? should they have focused?
V-ing perfect
should I have been focusing? should you have been focusing? should he have been focusing? should we have been focusing? should you have been focusing? should they have been focusing?
Interro-negative form
Simple form
should I not focus? should you not focus? should he not focus? should we not focus? should you not focus? should they not focus?
V-ing form
should I not be focusing? should you not be focusing? should he not be focusing? should we not be focusing? should you not be focusing? should they not be focusing?
Perfect
should I not have focused? should you not have focused? should he not have focused? should we not have focused? should you not have focused? should they not have focused?
V-ing perfect
should I not have been focusing? should you not have been focusing? should he not have been focusing? should we not have been focusing? should you not have been focusing? should they not have been focusing?