English verb conjugation
MUST CUSTOMIZE

Regular verb: customize - customized - customized

Affirmation

Simple form	V-ing form
I must customize you must customize he must customize we must customize you must customize they must customize	I must be customizing you must be customizing he must be customizing we must be customizing you must be customizing they must be customizing
Perfect	V-ing perfect
I must have customized you must have customized he must have customized we must have customized you must have customized they must have customized	I must have been customizing you must have been customizing he must have been customizing we must have been customizing you must have been customizing they must have been customizing

Negation

Simple form	V-ing form
I must not customize you must not customize he must not customize we must not customize you must not customize they must not customize	I must not be customizing you must not be customizing he must not be customizing we must not be customizing you must not be customizing they must not be customizing
Perfect	V-ing perfect
I must not have customized you must not have customized he must not have customized we must not have customized you must not have customized they must not have customized	I must not have been customizing you must not have been customizing he must not have been customizing we must not have been customizing you must not have been customizing they must not have been customizing

Interrogative form

Simple form	V-ing form
must I customize? must you customize? must he customize? must we customize? must you customize? must they customize?	must I be customizing? must you be customizing? must he be customizing? must we be customizing? must you be customizing? must they be customizing?
Perfect	V-ing perfect
must I have customized? must you have customized? must he have customized? must we have customized? must you have customized? must they have customized?	must I have been customizing? must you have been customizing? must he have been customizing? must we have been customizing? must you have been customizing? must they have been customizing?

Interro-negative form

Simple form	V-ing form
must I not customize? must you not customize? must he not customize? must we not customize? must you not customize? must they not customize?	must I not be customizing? must you not be customizing? must he not be customizing? must we not be customizing? must you not be customizing? must they not be customizing?
Perfect	V-ing perfect
must I not have customized? must you not have customized? must he not have customized? must we not have customized? must you not have customized? must they not have customized?	must I not have been customizing? must you not have been customizing? must he not have been customizing? must we not have been customizing? must you not have been customizing? must they not have been customizing?