I must fart you must fart he must fart we must fart you must fart they must fart
Forma con V-ing
I must be farting you must be farting he must be farting we must be farting you must be farting they must be farting
Perfecto
I must have farted you must have farted he must have farted we must have farted you must have farted they must have farted
Perfecto con V-ing
I must have been farting you must have been farting he must have been farting we must have been farting you must have been farting they must have been farting
Negación
Forma simple
I mustn't fart you mustn't fart he mustn't fart we mustn't fart you mustn't fart they mustn't fart
Forma con V-ing
I mustn't be farting you mustn't be farting he mustn't be farting we mustn't be farting you mustn't be farting they mustn't be farting
Perfecto
I mustn't have farted you mustn't have farted he mustn't have farted we mustn't have farted you mustn't have farted they mustn't have farted
Perfecto con V-ing
I mustn't have been farting you mustn't have been farting he mustn't have been farting we mustn't have been farting you mustn't have been farting they mustn't have been farting
Forma interrogativa
Forma simple
must I fart? must you fart? must he fart? must we fart? must you fart? must they fart?
Forma con V-ing
must I be farting? must you be farting? must he be farting? must we be farting? must you be farting? must they be farting?
Perfecto
must I have farted? must you have farted? must he have farted? must we have farted? must you have farted? must they have farted?
Perfecto con V-ing
must I have been farting? must you have been farting? must he have been farting? must we have been farting? must you have been farting? must they have been farting?
Forma interro-negativa
Forma simple
mustn't I fart? mustn't you fart? mustn't he fart? mustn't we fart? mustn't you fart? mustn't they fart?
Forma con V-ing
mustn't I be farting? mustn't you be farting? mustn't he be farting? mustn't we be farting? mustn't you be farting? mustn't they be farting?
Perfecto
mustn't I have farted? mustn't you have farted? mustn't he have farted? mustn't we have farted? mustn't you have farted? mustn't they have farted?
Perfecto con V-ing
mustn't I have been farting? mustn't you have been farting? mustn't he have been farting? mustn't we have been farting? mustn't you have been farting? mustn't they have been farting?