I could identify you could identify he could identify we could identify you could identify they could identify
Forma com V-ing
I could be identifying you could be identifying he could be identifying we could be identifying you could be identifying they could be identifying
Perfeito
I could have identified you could have identified he could have identified we could have identified you could have identified they could have identified
Perfeito com V-ing
I could have been identifying you could have been identifying he could have been identifying we could have been identifying you could have been identifying they could have been identifying
Negação
Forma simple
I could not identify you could not identify he could not identify we could not identify you could not identify they could not identify
Forma com V-ing
I could not be identifying you could not be identifying he could not be identifying we could not be identifying you could not be identifying they could not be identifying
Perfeito
I could not have identified you could not have identified he could not have identified we could not have identified you could not have identified they could not have identified
Perfeito com V-ing
I could not have been identifying you could not have been identifying he could not have been identifying we could not have been identifying you could not have been identifying they could not have been identifying
Forma interrogativa
Forma simple
could I identify? could you identify? could he identify? could we identify? could you identify? could they identify?
Forma com V-ing
could I be identifying? could you be identifying? could he be identifying? could we be identifying? could you be identifying? could they be identifying?
Perfeito
could I have identified? could you have identified? could he have identified? could we have identified? could you have identified? could they have identified?
Perfeito com V-ing
could I have been identifying? could you have been identifying? could he have been identifying? could we have been identifying? could you have been identifying? could they have been identifying?
Forma interro-Negação
Forma simple
could I not identify? could you not identify? could he not identify? could we not identify? could you not identify? could they not identify?
Forma com V-ing
could I not be identifying? could you not be identifying? could he not be identifying? could we not be identifying? could you not be identifying? could they not be identifying?
Perfeito
could I not have identified? could you not have identified? could he not have identified? could we not have identified? could you not have identified? could they not have identified?
Perfeito com V-ing
could I not have been identifying? could you not have been identifying? could he not have been identifying? could we not have been identifying? could you not have been identifying? could they not have been identifying?