I can modulate you can modulate he can modulate we can modulate you can modulate they can modulate
Forma con V-ing
I can be modulating you can be modulating he can be modulating we can be modulating you can be modulating they can be modulating
Perfecto
I can have modulated you can have modulated he can have modulated we can have modulated you can have modulated they can have modulated
Perfecto con V-ing
I can have been modulating you can have been modulating he can have been modulating we can have been modulating you can have been modulating they can have been modulating
Negación
Forma simple
I can't modulate you can't modulate he can't modulate we can't modulate you can't modulate they can't modulate
Forma con V-ing
I can't be modulating you can't be modulating he can't be modulating we can't be modulating you can't be modulating they can't be modulating
Perfecto
I can't have modulated you can't have modulated he can't have modulated we can't have modulated you can't have modulated they can't have modulated
Perfecto con V-ing
I can't have been modulating you can't have been modulating he can't have been modulating we can't have been modulating you can't have been modulating they can't have been modulating
Forma interrogativa
Forma simple
can I modulate? can you modulate? can he modulate? can we modulate? can you modulate? can they modulate?
Forma con V-ing
can I be modulating? can you be modulating? can he be modulating? can we be modulating? can you be modulating? can they be modulating?
Perfecto
can I have modulated? can you have modulated? can he have modulated? can we have modulated? can you have modulated? can they have modulated?
Perfecto con V-ing
can I have been modulating? can you have been modulating? can he have been modulating? can we have been modulating? can you have been modulating? can they have been modulating?
Forma interro-negativa
Forma simple
can't I modulate? can't you modulate? can't he modulate? can't we modulate? can't you modulate? can't they modulate?
Forma con V-ing
can't I be modulating? can't you be modulating? can't he be modulating? can't we be modulating? can't you be modulating? can't they be modulating?
Perfecto
can't I have modulated? can't you have modulated? can't he have modulated? can't we have modulated? can't you have modulated? can't they have modulated?
Perfecto con V-ing
can't I have been modulating? can't you have been modulating? can't he have been modulating? can't we have been modulating? can't you have been modulating? can't they have been modulating?