English verb conjugation
MUST INPUT

Irregular verb: input - input - input

Affirmation

Simple form	V-ing form
I must input you must input he must input we must input you must input they must input	I must be inputing you must be inputing he must be inputing we must be inputing you must be inputing they must be inputing
Perfect	V-ing perfect
I must have input you must have input he must have input we must have input you must have input they must have input	I must have been inputing you must have been inputing he must have been inputing we must have been inputing you must have been inputing they must have been inputing

Negation

Simple form	V-ing form
I must not input you must not input he must not input we must not input you must not input they must not input	I must not be inputing you must not be inputing he must not be inputing we must not be inputing you must not be inputing they must not be inputing
Perfect	V-ing perfect
I must not have input you must not have input he must not have input we must not have input you must not have input they must not have input	I must not have been inputing you must not have been inputing he must not have been inputing we must not have been inputing you must not have been inputing they must not have been inputing

Interrogative form

Simple form	V-ing form
must I input? must you input? must he input? must we input? must you input? must they input?	must I be inputing? must you be inputing? must he be inputing? must we be inputing? must you be inputing? must they be inputing?
Perfect	V-ing perfect
must I have input? must you have input? must he have input? must we have input? must you have input? must they have input?	must I have been inputing? must you have been inputing? must he have been inputing? must we have been inputing? must you have been inputing? must they have been inputing?

Interro-negative form

Simple form	V-ing form
must I not input? must you not input? must he not input? must we not input? must you not input? must they not input?	must I not be inputing? must you not be inputing? must he not be inputing? must we not be inputing? must you not be inputing? must they not be inputing?
Perfect	V-ing perfect
must I not have input? must you not have input? must he not have input? must we not have input? must you not have input? must they not have input?	must I not have been inputing? must you not have been inputing? must he not have been inputing? must we not have been inputing? must you not have been inputing? must they not have been inputing?