English verb conjugation
MUST ENCRUST

Regular verb: encrust - encrusted - encrusted

Affirmation

Simple form	V-ing form
I must encrust you must encrust he must encrust we must encrust you must encrust they must encrust	I must be encrusting you must be encrusting he must be encrusting we must be encrusting you must be encrusting they must be encrusting
Perfect	V-ing perfect
I must have encrusted you must have encrusted he must have encrusted we must have encrusted you must have encrusted they must have encrusted	I must have been encrusting you must have been encrusting he must have been encrusting we must have been encrusting you must have been encrusting they must have been encrusting

Negation

Simple form	V-ing form
I must not encrust you must not encrust he must not encrust we must not encrust you must not encrust they must not encrust	I must not be encrusting you must not be encrusting he must not be encrusting we must not be encrusting you must not be encrusting they must not be encrusting
Perfect	V-ing perfect
I must not have encrusted you must not have encrusted he must not have encrusted we must not have encrusted you must not have encrusted they must not have encrusted	I must not have been encrusting you must not have been encrusting he must not have been encrusting we must not have been encrusting you must not have been encrusting they must not have been encrusting

Interrogative form

Simple form	V-ing form
must I encrust? must you encrust? must he encrust? must we encrust? must you encrust? must they encrust?	must I be encrusting? must you be encrusting? must he be encrusting? must we be encrusting? must you be encrusting? must they be encrusting?
Perfect	V-ing perfect
must I have encrusted? must you have encrusted? must he have encrusted? must we have encrusted? must you have encrusted? must they have encrusted?	must I have been encrusting? must you have been encrusting? must he have been encrusting? must we have been encrusting? must you have been encrusting? must they have been encrusting?

Interro-negative form

Simple form	V-ing form
must I not encrust? must you not encrust? must he not encrust? must we not encrust? must you not encrust? must they not encrust?	must I not be encrusting? must you not be encrusting? must he not be encrusting? must we not be encrusting? must you not be encrusting? must they not be encrusting?
Perfect	V-ing perfect
must I not have encrusted? must you not have encrusted? must he not have encrusted? must we not have encrusted? must you not have encrusted? must they not have encrusted?	must I not have been encrusting? must you not have been encrusting? must he not have been encrusting? must we not have been encrusting? must you not have been encrusting? must they not have been encrusting?