I must bumble you must bumble he must bumble we must bumble you must bumble they must bumble
Forme en V-ing
I must be bumbling you must be bumbling he must be bumbling we must be bumbling you must be bumbling they must be bumbling
Perfect
I must have bumbled you must have bumbled he must have bumbled we must have bumbled you must have bumbled they must have bumbled
Perfect en V-ing
I must have been bumbling you must have been bumbling he must have been bumbling we must have been bumbling you must have been bumbling they must have been bumbling
Négation
Forme simple
I mustn't bumble you mustn't bumble he mustn't bumble we mustn't bumble you mustn't bumble they mustn't bumble
Forme en V-ing
I mustn't be bumbling you mustn't be bumbling he mustn't be bumbling we mustn't be bumbling you mustn't be bumbling they mustn't be bumbling
Perfect
I mustn't have bumbled you mustn't have bumbled he mustn't have bumbled we mustn't have bumbled you mustn't have bumbled they mustn't have bumbled
Perfect en V-ing
I mustn't have been bumbling you mustn't have been bumbling he mustn't have been bumbling we mustn't have been bumbling you mustn't have been bumbling they mustn't have been bumbling
Forme interrogative
Forme simple
must I bumble? must you bumble? must he bumble? must we bumble? must you bumble? must they bumble?
Forme en V-ing
must I be bumbling? must you be bumbling? must he be bumbling? must we be bumbling? must you be bumbling? must they be bumbling?
Perfect
must I have bumbled? must you have bumbled? must he have bumbled? must we have bumbled? must you have bumbled? must they have bumbled?
Perfect en V-ing
must I have been bumbling? must you have been bumbling? must he have been bumbling? must we have been bumbling? must you have been bumbling? must they have been bumbling?
Forme interro-négative
Forme simple
mustn't I bumble? mustn't you bumble? mustn't he bumble? mustn't we bumble? mustn't you bumble? mustn't they bumble?
Forme en V-ing
mustn't I be bumbling? mustn't you be bumbling? mustn't he be bumbling? mustn't we be bumbling? mustn't you be bumbling? mustn't they be bumbling?
Perfect
mustn't I have bumbled? mustn't you have bumbled? mustn't he have bumbled? mustn't we have bumbled? mustn't you have bumbled? mustn't they have bumbled?
Perfect en V-ing
mustn't I have been bumbling? mustn't you have been bumbling? mustn't he have been bumbling? mustn't we have been bumbling? mustn't you have been bumbling? mustn't they have been bumbling?