I must burble you must burble she must burble we must burble you must burble they must burble
Forme en V-ing
I must be burbling you must be burbling she must be burbling we must be burbling you must be burbling they must be burbling
Perfect
I must have burbled you must have burbled she must have burbled we must have burbled you must have burbled they must have burbled
Perfect en V-ing
I must have been burbling you must have been burbling she must have been burbling we must have been burbling you must have been burbling they must have been burbling
Négation
Forme simple
I mustn't burble you mustn't burble she mustn't burble we mustn't burble you mustn't burble they mustn't burble
Forme en V-ing
I mustn't be burbling you mustn't be burbling she mustn't be burbling we mustn't be burbling you mustn't be burbling they mustn't be burbling
Perfect
I mustn't have burbled you mustn't have burbled she mustn't have burbled we mustn't have burbled you mustn't have burbled they mustn't have burbled
Perfect en V-ing
I mustn't have been burbling you mustn't have been burbling she mustn't have been burbling we mustn't have been burbling you mustn't have been burbling they mustn't have been burbling
Forme interrogative
Forme simple
must I burble? must you burble? must she burble? must we burble? must you burble? must they burble?
Forme en V-ing
must I be burbling? must you be burbling? must she be burbling? must we be burbling? must you be burbling? must they be burbling?
Perfect
must I have burbled? must you have burbled? must she have burbled? must we have burbled? must you have burbled? must they have burbled?
Perfect en V-ing
must I have been burbling? must you have been burbling? must she have been burbling? must we have been burbling? must you have been burbling? must they have been burbling?
Forme interro-négative
Forme simple
mustn't I burble? mustn't you burble? mustn't she burble? mustn't we burble? mustn't you burble? mustn't they burble?
Forme en V-ing
mustn't I be burbling? mustn't you be burbling? mustn't she be burbling? mustn't we be burbling? mustn't you be burbling? mustn't they be burbling?
Perfect
mustn't I have burbled? mustn't you have burbled? mustn't she have burbled? mustn't we have burbled? mustn't you have burbled? mustn't they have burbled?
Perfect en V-ing
mustn't I have been burbling? mustn't you have been burbling? mustn't she have been burbling? mustn't we have been burbling? mustn't you have been burbling? mustn't they have been burbling?