English verb conjugation
SHOULD PRACTICE

Regular verb: practice - practiced - practiced

Affirmation

Simple form	V-ing form
I'd practice you'd practice she'd practice we'd practice you'd practice they'd practice	I'd be practicing you'd be practicing she'd be practicing we'd be practicing you'd be practicing they'd be practicing
Perfect	V-ing perfect
I should've practiced you should've practiced she should've practiced we should've practiced you should've practiced they should've practiced	I should've been practicing you should've been practicing she should've been practicing we should've been practicing you should've been practicing they should've been practicing

Negation

Simple form	V-ing form
I shouldn't practice you shouldn't practice she shouldn't practice we shouldn't practice you shouldn't practice they shouldn't practice	I shouldn't be practicing you shouldn't be practicing she shouldn't be practicing we shouldn't be practicing you shouldn't be practicing they shouldn't be practicing
Perfect	V-ing perfect
I shouldn't have practiced you shouldn't have practiced she shouldn't have practiced we shouldn't have practiced you shouldn't have practiced they shouldn't have practiced	I shouldn't have been practicing you shouldn't have been practicing she 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	V-ing form
should I practice? should you practice? should she practice? should we practice? should you practice? should they practice?	should I be practicing? should you be practicing? should she be practicing? should we be practicing? should you be practicing? should they be practicing?
Perfect	V-ing perfect
should I have practiced? should you have practiced? should she have practiced? should we have practiced? should you have practiced? should they have practiced?	should I have been practicing? should you have been practicing? should she have been practicing? should we have been practicing? should you have been practicing? should they have been practicing?

Interro-negative form

Simple form	V-ing form
shouldn't I practice? shouldn't you practice? shouldn't she practice? shouldn't we practice? shouldn't you practice? shouldn't they practice?	shouldn't I be practicing? shouldn't you be practicing? shouldn't she be practicing? shouldn't we be practicing? shouldn't you be practicing? shouldn't they be practicing?
Perfect	V-ing perfect
shouldn't I have practiced? shouldn't you have practiced? shouldn't she have practiced? shouldn't we have practiced? shouldn't you have practiced? shouldn't they have practiced?	shouldn't I have been practicing? shouldn't you have been practicing? shouldn't she have been practicing? shouldn't we have been practicing? shouldn't you have been practicing? shouldn't they have been practicing?