I could modulate you could modulate she could modulate we could modulate you could modulate they could modulate
Forma com V-ing
I could be modulating you could be modulating she could be modulating we could be modulating you could be modulating they could be modulating
Perfeito
I could have modulated you could have modulated she could have modulated we could have modulated you could have modulated they could have modulated
Perfeito com V-ing
I could have been modulating you could have been modulating she could have been modulating we could have been modulating you could have been modulating they could have been modulating
Negação
Forma simple
I could not modulate you could not modulate she could not modulate we could not modulate you could not modulate they could not modulate
Forma com V-ing
I could not be modulating you could not be modulating she could not be modulating we could not be modulating you could not be modulating they could not be modulating
Perfeito
I could not have modulated you could not have modulated she could not have modulated we could not have modulated you could not have modulated they could not have modulated
Perfeito com V-ing
I could not have been modulating you could not have been modulating she could not have been modulating we could not have been modulating you could not have been modulating they could not have been modulating
Forma interrogativa
Forma simple
could I modulate? could you modulate? could she modulate? could we modulate? could you modulate? could they modulate?
Forma com V-ing
could I be modulating? could you be modulating? could she be modulating? could we be modulating? could you be modulating? could they be modulating?
Perfeito
could I have modulated? could you have modulated? could she have modulated? could we have modulated? could you have modulated? could they have modulated?
Perfeito com V-ing
could I have been modulating? could you have been modulating? could she have been modulating? could we have been modulating? could you have been modulating? could they have been modulating?
Forma interro-Negação
Forma simple
could I not modulate? could you not modulate? could she not modulate? could we not modulate? could you not modulate? could they not modulate?
Forma com V-ing
could I not be modulating? could you not be modulating? could she not be modulating? could we not be modulating? could you not be modulating? could they not be modulating?
Perfeito
could I not have modulated? could you not have modulated? could she not have modulated? could we not have modulated? could you not have modulated? could they not have modulated?
Perfeito com V-ing
could I not have been modulating? could you not have been modulating? could she not have been modulating? could we not have been modulating? could you not have been modulating? could they not have been modulating?