English verb conjugation
MUST PRACTICE

Regular verb: practice - practiced - practiced

Affirmation

Simple form	V-ing form
I must practice you must practice she must practice we must practice you must practice they must practice	I must be practicing you must be practicing she must be practicing we must be practicing you must be practicing they must be practicing
Perfect	V-ing perfect
I must have practiced you must have practiced she must have practiced we must have practiced you must have practiced they must have practiced	I must have been practicing you must have been practicing she must have been practicing we must have been practicing you must have been practicing they must have been practicing

Negation

Simple form	V-ing form
I must not practice you must not practice she must not practice we must not practice you must not practice they must not practice	I must not be practicing you must not be practicing she must not be practicing we must not be practicing you must not be practicing they must not be practicing
Perfect	V-ing perfect
I must not have practiced you must not have practiced she must not have practiced we must not have practiced you must not have practiced they must not have practiced	I must not have been practicing you must not have been practicing she must not have been practicing we must not have been practicing you must not have been practicing they must not have been practicing

Interrogative form

Simple form	V-ing form
must I practice? must you practice? must she practice? must we practice? must you practice? must they practice?	must I be practicing? must you be practicing? must she be practicing? must we be practicing? must you be practicing? must they be practicing?
Perfect	V-ing perfect
must I have practiced? must you have practiced? must she have practiced? must we have practiced? must you have practiced? must they have practiced?	must I have been practicing? must you have been practicing? must she have been practicing? must we have been practicing? must you have been practicing? must they have been practicing?

Interro-negative form

Simple form	V-ing form
must I not practice? must you not practice? must she not practice? must we not practice? must you not practice? must they not practice?	must I not be practicing? must you not be practicing? must she not be practicing? must we not be practicing? must you not be practicing? must they not be practicing?
Perfect	V-ing perfect
must I not have practiced? must you not have practiced? must she not have practiced? must we not have practiced? must you not have practiced? must they not have practiced?	must I not have been practicing? must you not have been practicing? must she not have been practicing? must we not have been practicing? must you not have been practicing? must they not have been practicing?