English verb conjugation
MUST LOG

Regular verb: log - logged - logged

Affirmation

Simple form	V-ing form
I must log you must log he must log we must log you must log they must log	I must be logging you must be logging he must be logging we must be logging you must be logging they must be logging
Perfect	V-ing perfect
I must have logged you must have logged he must have logged we must have logged you must have logged they must have logged	I must have been logging you must have been logging he must have been logging we must have been logging you must have been logging they must have been logging

Negation

Simple form	V-ing form
I mustn't log you mustn't log he mustn't log we mustn't log you mustn't log they mustn't log	I mustn't be logging you mustn't be logging he mustn't be logging we mustn't be logging you mustn't be logging they mustn't be logging
Perfect	V-ing perfect
I mustn't have logged you mustn't have logged he mustn't have logged we mustn't have logged you mustn't have logged they mustn't have logged	I mustn't have been logging you mustn't have been logging he mustn't have been logging we mustn't have been logging you mustn't have been logging they mustn't have been logging

Interrogative form

Simple form	V-ing form
must I log? must you log? must he log? must we log? must you log? must they log?	must I be logging? must you be logging? must he be logging? must we be logging? must you be logging? must they be logging?
Perfect	V-ing perfect
must I have logged? must you have logged? must he have logged? must we have logged? must you have logged? must they have logged?	must I have been logging? must you have been logging? must he have been logging? must we have been logging? must you have been logging? must they have been logging?

Interro-negative form

Simple form	V-ing form
mustn't I log? mustn't you log? mustn't he log? mustn't we log? mustn't you log? mustn't they log?	mustn't I be logging? mustn't you be logging? mustn't he be logging? mustn't we be logging? mustn't you be logging? mustn't they be logging?
Perfect	V-ing perfect
mustn't I have logged? mustn't you have logged? mustn't he have logged? mustn't we have logged? mustn't you have logged? mustn't they have logged?	mustn't I have been logging? mustn't you have been logging? mustn't he have been logging? mustn't we have been logging? mustn't you have been logging? mustn't they have been logging?