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