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