I must frequent you must frequent he must frequent we must frequent you must frequent they must frequent
Forma con V-ing
I must be frequenting you must be frequenting he must be frequenting we must be frequenting you must be frequenting they must be frequenting
Perfecto
I must have frequented you must have frequented he must have frequented we must have frequented you must have frequented they must have frequented
Perfecto con V-ing
I must have been frequenting you must have been frequenting he must have been frequenting we must have been frequenting you must have been frequenting they must have been frequenting
Negación
Forma simple
I must not frequent you must not frequent he must not frequent we must not frequent you must not frequent they must not frequent
Forma con V-ing
I must not be frequenting you must not be frequenting he must not be frequenting we must not be frequenting you must not be frequenting they must not be frequenting
Perfecto
I must not have frequented you must not have frequented he must not have frequented we must not have frequented you must not have frequented they must not have frequented
Perfecto con V-ing
I must not have been frequenting you must not have been frequenting he must not have been frequenting we must not have been frequenting you must not have been frequenting they must not have been frequenting
Forma interrogativa
Forma simple
must I frequent? must you frequent? must he frequent? must we frequent? must you frequent? must they frequent?
Forma con V-ing
must I be frequenting? must you be frequenting? must he be frequenting? must we be frequenting? must you be frequenting? must they be frequenting?
Perfecto
must I have frequented? must you have frequented? must he have frequented? must we have frequented? must you have frequented? must they have frequented?
Perfecto con V-ing
must I have been frequenting? must you have been frequenting? must he have been frequenting? must we have been frequenting? must you have been frequenting? must they have been frequenting?
Forma interro-negativa
Forma simple
must I not frequent? must you not frequent? must he not frequent? must we not frequent? must you not frequent? must they not frequent?
Forma con V-ing
must I not be frequenting? must you not be frequenting? must he not be frequenting? must we not be frequenting? must you not be frequenting? must they not be frequenting?
Perfecto
must I not have frequented? must you not have frequented? must he not have frequented? must we not have frequented? must you not have frequented? must they not have frequented?
Perfecto con V-ing
must I not have been frequenting? must you not have been frequenting? must he not have been frequenting? must we not have been frequenting? must you not have been frequenting? must they not have been frequenting?