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 mustn't input you mustn't input he mustn't input we mustn't input you mustn't input they mustn't input	I mustn't be inputing you mustn't be inputing he mustn't be inputing we mustn't be inputing you mustn't be inputing they mustn't be inputing
Perfect	V-ing perfect
I mustn't have input you mustn't have input he mustn't have input we mustn't have input you mustn't have input they mustn't have input	I mustn't have been inputing you mustn't have been inputing he mustn't have been inputing we mustn't have been inputing you mustn't have been inputing they mustn't 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
mustn't I input? mustn't you input? mustn't he input? mustn't we input? mustn't you input? mustn't they input?	mustn't I be inputing? mustn't you be inputing? mustn't he be inputing? mustn't we be inputing? mustn't you be inputing? mustn't they be inputing?
Perfect	V-ing perfect
mustn't I have input? mustn't you have input? mustn't he have input? mustn't we have input? mustn't you have input? mustn't they have input?	mustn't I have been inputing? mustn't you have been inputing? mustn't he have been inputing? mustn't we have been inputing? mustn't you have been inputing? mustn't they have been inputing?