Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must offer sth you must offer sth he must offer sth we must offer sth you must offer sth they must offer sth
V-ing form
I must be offer sthing you must be offer sthing he must be offer sthing we must be offer sthing you must be offer sthing they must be offer sthing
Perfect
I must have offer sthed you must have offer sthed he must have offer sthed we must have offer sthed you must have offer sthed they must have offer sthed
V-ing perfect
I must have been offer sthing you must have been offer sthing he must have been offer sthing we must have been offer sthing you must have been offer sthing they must have been offer sthing
Negation
Simple form
I mustn't offer sth you mustn't offer sth he mustn't offer sth we mustn't offer sth you mustn't offer sth they mustn't offer sth
V-ing form
I mustn't be offer sthing you mustn't be offer sthing he mustn't be offer sthing we mustn't be offer sthing you mustn't be offer sthing they mustn't be offer sthing
Perfect
I mustn't have offer sthed you mustn't have offer sthed he mustn't have offer sthed we mustn't have offer sthed you mustn't have offer sthed they mustn't have offer sthed
V-ing perfect
I mustn't have been offer sthing you mustn't have been offer sthing he mustn't have been offer sthing we mustn't have been offer sthing you mustn't have been offer sthing they mustn't have been offer sthing
Interrogative form
Simple form
must I offer sth? must you offer sth? must he offer sth? must we offer sth? must you offer sth? must they offer sth?
V-ing form
must I be offer sthing? must you be offer sthing? must he be offer sthing? must we be offer sthing? must you be offer sthing? must they be offer sthing?
Perfect
must I have offer sthed? must you have offer sthed? must he have offer sthed? must we have offer sthed? must you have offer sthed? must they have offer sthed?
V-ing perfect
must I have been offer sthing? must you have been offer sthing? must he have been offer sthing? must we have been offer sthing? must you have been offer sthing? must they have been offer sthing?
Interro-negative form
Simple form
mustn't I offer sth? mustn't you offer sth? mustn't he offer sth? mustn't we offer sth? mustn't you offer sth? mustn't they offer sth?
V-ing form
mustn't I be offer sthing? mustn't you be offer sthing? mustn't he be offer sthing? mustn't we be offer sthing? mustn't you be offer sthing? mustn't they be offer sthing?
Perfect
mustn't I have offer sthed? mustn't you have offer sthed? mustn't he have offer sthed? mustn't we have offer sthed? mustn't you have offer sthed? mustn't they have offer sthed?
V-ing perfect
mustn't I have been offer sthing? mustn't you have been offer sthing? mustn't he have been offer sthing? mustn't we have been offer sthing? mustn't you have been offer sthing? mustn't they have been offer sthing?