I must burble you must burble she must burble we must burble you must burble they must burble
Forma con 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
Perfecto
I must have burbled you must have burbled she must have burbled we must have burbled you must have burbled they must have burbled
Perfecto con 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
Negación
Forma 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
Forma con 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
Perfecto
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
Perfecto con 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
Forma interrogativa
Forma simple
must I burble? must you burble? must she burble? must we burble? must you burble? must they burble?
Forma con 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?
Perfecto
must I have burbled? must you have burbled? must she have burbled? must we have burbled? must you have burbled? must they have burbled?
Perfecto con 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?
Forma interro-negativa
Forma 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?
Forma con 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?
Perfecto
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?
Perfecto con 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?