I must buffet you must buffet he must buffet we must buffet you must buffet they must buffet
V-ing form
I must be buffeting you must be buffeting he must be buffeting we must be buffeting you must be buffeting they must be buffeting
Perfect
I must have buffeted you must have buffeted he must have buffeted we must have buffeted you must have buffeted they must have buffeted
V-ing perfect
I must have been buffeting you must have been buffeting he must have been buffeting we must have been buffeting you must have been buffeting they must have been buffeting
Negation
Simple form
I mustn't buffet you mustn't buffet he mustn't buffet we mustn't buffet you mustn't buffet they mustn't buffet
V-ing form
I mustn't be buffeting you mustn't be buffeting he mustn't be buffeting we mustn't be buffeting you mustn't be buffeting they mustn't be buffeting
Perfect
I mustn't have buffeted you mustn't have buffeted he mustn't have buffeted we mustn't have buffeted you mustn't have buffeted they mustn't have buffeted
V-ing perfect
I mustn't have been buffeting you mustn't have been buffeting he mustn't have been buffeting we mustn't have been buffeting you mustn't have been buffeting they mustn't have been buffeting
Interrogative form
Simple form
must I buffet? must you buffet? must he buffet? must we buffet? must you buffet? must they buffet?
V-ing form
must I be buffeting? must you be buffeting? must he be buffeting? must we be buffeting? must you be buffeting? must they be buffeting?
Perfect
must I have buffeted? must you have buffeted? must he have buffeted? must we have buffeted? must you have buffeted? must they have buffeted?
V-ing perfect
must I have been buffeting? must you have been buffeting? must he have been buffeting? must we have been buffeting? must you have been buffeting? must they have been buffeting?
Interro-negative form
Simple form
mustn't I buffet? mustn't you buffet? mustn't he buffet? mustn't we buffet? mustn't you buffet? mustn't they buffet?
V-ing form
mustn't I be buffeting? mustn't you be buffeting? mustn't he be buffeting? mustn't we be buffeting? mustn't you be buffeting? mustn't they be buffeting?
Perfect
mustn't I have buffeted? mustn't you have buffeted? mustn't he have buffeted? mustn't we have buffeted? mustn't you have buffeted? mustn't they have buffeted?
V-ing perfect
mustn't I have been buffeting? mustn't you have been buffeting? mustn't he have been buffeting? mustn't we have been buffeting? mustn't you have been buffeting? mustn't they have been buffeting?