English verb conjugation
MUST CRAVE

Regular verb: crave - craved - craved

Affirmation

Simple form	V-ing form
I must crave you must crave he must crave we must crave you must crave they must crave	I must be craving you must be craving he must be craving we must be craving you must be craving they must be craving
Perfect	V-ing perfect
I must have craved you must have craved he must have craved we must have craved you must have craved they must have craved	I must have been craving you must have been craving he must have been craving we must have been craving you must have been craving they must have been craving

Negation

Simple form	V-ing form
I must not crave you must not crave he must not crave we must not crave you must not crave they must not crave	I must not be craving you must not be craving he must not be craving we must not be craving you must not be craving they must not be craving
Perfect	V-ing perfect
I must not have craved you must not have craved he must not have craved we must not have craved you must not have craved they must not have craved	I must not have been craving you must not have been craving he must not have been craving we must not have been craving you must not have been craving they must not have been craving

Interrogative form

Simple form	V-ing form
must I crave? must you crave? must he crave? must we crave? must you crave? must they crave?	must I be craving? must you be craving? must he be craving? must we be craving? must you be craving? must they be craving?
Perfect	V-ing perfect
must I have craved? must you have craved? must he have craved? must we have craved? must you have craved? must they have craved?	must I have been craving? must you have been craving? must he have been craving? must we have been craving? must you have been craving? must they have been craving?

Interro-negative form

Simple form	V-ing form
must I not crave? must you not crave? must he not crave? must we not crave? must you not crave? must they not crave?	must I not be craving? must you not be craving? must he not be craving? must we not be craving? must you not be craving? must they not be craving?
Perfect	V-ing perfect
must I not have craved? must you not have craved? must he not have craved? must we not have craved? must you not have craved? must they not have craved?	must I not have been craving? must you not have been craving? must he not have been craving? must we not have been craving? must you not have been craving? must they not have been craving?