I'd be solving you'd be solving he'd be solving we'd be solving you'd be solving they'd be solving
Perfect
I should've solved you should've solved he should've solved we should've solved you should've solved they should've solved
V-ing perfect
I should've been solving you should've been solving he should've been solving we should've been solving you should've been solving they should've been solving
Negation
Simple form
I shouldn't solve you shouldn't solve he shouldn't solve we shouldn't solve you shouldn't solve they shouldn't solve
V-ing form
I shouldn't be solving you shouldn't be solving he shouldn't be solving we shouldn't be solving you shouldn't be solving they shouldn't be solving
Perfect
I shouldn't have solved you shouldn't have solved he shouldn't have solved we shouldn't have solved you shouldn't have solved they shouldn't have solved
V-ing perfect
I shouldn't have been solving you shouldn't have been solving he shouldn't have been solving we shouldn't have been solving you shouldn't have been solving they shouldn't have been solving
Interrogative form
Simple form
should I solve? should you solve? should he solve? should we solve? should you solve? should they solve?
V-ing form
should I be solving? should you be solving? should he be solving? should we be solving? should you be solving? should they be solving?
Perfect
should I have solved? should you have solved? should he have solved? should we have solved? should you have solved? should they have solved?
V-ing perfect
should I have been solving? should you have been solving? should he have been solving? should we have been solving? should you have been solving? should they have been solving?
Interro-negative form
Simple form
shouldn't I solve? shouldn't you solve? shouldn't he solve? shouldn't we solve? shouldn't you solve? shouldn't they solve?
V-ing form
shouldn't I be solving? shouldn't you be solving? shouldn't he be solving? shouldn't we be solving? shouldn't you be solving? shouldn't they be solving?
Perfect
shouldn't I have solved? shouldn't you have solved? shouldn't he have solved? shouldn't we have solved? shouldn't you have solved? shouldn't they have solved?
V-ing perfect
shouldn't I have been solving? shouldn't you have been solving? shouldn't he have been solving? shouldn't we have been solving? shouldn't you have been solving? shouldn't they have been solving?