English verb conjugation
MUST PREPROGRAM

Regular verb: preprogram - preprogramed - preprogramed

Affirmation

Simple form	V-ing form
I must preprogram you must preprogram he must preprogram we must preprogram you must preprogram they must preprogram	I must be preprograming you must be preprograming he must be preprograming we must be preprograming you must be preprograming they must be preprograming
Perfect	V-ing perfect
I must have preprogramed you must have preprogramed he must have preprogramed we must have preprogramed you must have preprogramed they must have preprogramed	I must have been preprograming you must have been preprograming he must have been preprograming we must have been preprograming you must have been preprograming they must have been preprograming

Negation

Simple form	V-ing form
I mustn't preprogram you mustn't preprogram he mustn't preprogram we mustn't preprogram you mustn't preprogram they mustn't preprogram	I mustn't be preprograming you mustn't be preprograming he mustn't be preprograming we mustn't be preprograming you mustn't be preprograming they mustn't be preprograming
Perfect	V-ing perfect
I mustn't have preprogramed you mustn't have preprogramed he mustn't have preprogramed we mustn't have preprogramed you mustn't have preprogramed they mustn't have preprogramed	I mustn't have been preprograming you mustn't have been preprograming he mustn't have been preprograming we mustn't have been preprograming you mustn't have been preprograming they mustn't have been preprograming

Interrogative form

Simple form	V-ing form
must I preprogram? must you preprogram? must he preprogram? must we preprogram? must you preprogram? must they preprogram?	must I be preprograming? must you be preprograming? must he be preprograming? must we be preprograming? must you be preprograming? must they be preprograming?
Perfect	V-ing perfect
must I have preprogramed? must you have preprogramed? must he have preprogramed? must we have preprogramed? must you have preprogramed? must they have preprogramed?	must I have been preprograming? must you have been preprograming? must he have been preprograming? must we have been preprograming? must you have been preprograming? must they have been preprograming?

Interro-negative form

Simple form	V-ing form
mustn't I preprogram? mustn't you preprogram? mustn't he preprogram? mustn't we preprogram? mustn't you preprogram? mustn't they preprogram?	mustn't I be preprograming? mustn't you be preprograming? mustn't he be preprograming? mustn't we be preprograming? mustn't you be preprograming? mustn't they be preprograming?
Perfect	V-ing perfect
mustn't I have preprogramed? mustn't you have preprogramed? mustn't he have preprogramed? mustn't we have preprogramed? mustn't you have preprogramed? mustn't they have preprogramed?	mustn't I have been preprograming? mustn't you have been preprograming? mustn't he have been preprograming? mustn't we have been preprograming? mustn't you have been preprograming? mustn't they have been preprograming?