English verb conjugation
MUST COMPRESS

Regular verb: compress - compressed - compressed

Affirmation

Simple form	V-ing form
I must compress you must compress he must compress we must compress you must compress they must compress	I must be compressing you must be compressing he must be compressing we must be compressing you must be compressing they must be compressing
Perfect	V-ing perfect
I must have compressed you must have compressed he must have compressed we must have compressed you must have compressed they must have compressed	I must have been compressing you must have been compressing he must have been compressing we must have been compressing you must have been compressing they must have been compressing

Negation

Simple form	V-ing form
I mustn't compress you mustn't compress he mustn't compress we mustn't compress you mustn't compress they mustn't compress	I mustn't be compressing you mustn't be compressing he mustn't be compressing we mustn't be compressing you mustn't be compressing they mustn't be compressing
Perfect	V-ing perfect
I mustn't have compressed you mustn't have compressed he mustn't have compressed we mustn't have compressed you mustn't have compressed they mustn't have compressed	I mustn't have been compressing you mustn't have been compressing he mustn't have been compressing we mustn't have been compressing you mustn't have been compressing they mustn't have been compressing

Interrogative form

Simple form	V-ing form
must I compress? must you compress? must he compress? must we compress? must you compress? must they compress?	must I be compressing? must you be compressing? must he be compressing? must we be compressing? must you be compressing? must they be compressing?
Perfect	V-ing perfect
must I have compressed? must you have compressed? must he have compressed? must we have compressed? must you have compressed? must they have compressed?	must I have been compressing? must you have been compressing? must he have been compressing? must we have been compressing? must you have been compressing? must they have been compressing?

Interro-negative form

Simple form	V-ing form
mustn't I compress? mustn't you compress? mustn't he compress? mustn't we compress? mustn't you compress? mustn't they compress?	mustn't I be compressing? mustn't you be compressing? mustn't he be compressing? mustn't we be compressing? mustn't you be compressing? mustn't they be compressing?
Perfect	V-ing perfect
mustn't I have compressed? mustn't you have compressed? mustn't he have compressed? mustn't we have compressed? mustn't you have compressed? mustn't they have compressed?	mustn't I have been compressing? mustn't you have been compressing? mustn't he have been compressing? mustn't we have been compressing? mustn't you have been compressing? mustn't they have been compressing?