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