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 must not slide you must not slide he must not slide we must not slide you must not slide they must not slide
Forma con V-ing
I must not be sliding you must not be sliding he must not be sliding we must not be sliding you must not be sliding they must not be sliding
Perfecto
I must not have slid you must not have slid he must not have slid we must not have slid you must not have slid they must not have slid
Perfecto con V-ing
I must not have been sliding you must not have been sliding he must not have been sliding we must not have been sliding you must not have been sliding they must not 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
must I not slide? must you not slide? must he not slide? must we not slide? must you not slide? must they not slide?
Forma con V-ing
must I not be sliding? must you not be sliding? must he not be sliding? must we not be sliding? must you not be sliding? must they not be sliding?
Perfecto
must I not have slid? must you not have slid? must he not have slid? must we not have slid? must you not have slid? must they not have slid?
Perfecto con V-ing
must I not have been sliding? must you not have been sliding? must he not have been sliding? must we not have been sliding? must you not have been sliding? must they not have been sliding?