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