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