I could tender you could tender he could tender we could tender you could tender they could tender
Forma con V-ing
I could be tendering you could be tendering he could be tendering we could be tendering you could be tendering they could be tendering
Perfecto
I could have tendered you could have tendered he could have tendered we could have tendered you could have tendered they could have tendered
Perfecto con V-ing
I could have been tendering you could have been tendering he could have been tendering we could have been tendering you could have been tendering they could have been tendering
Negación
Forma simple
I could not tender you could not tender he could not tender we could not tender you could not tender they could not tender
Forma con V-ing
I could not be tendering you could not be tendering he could not be tendering we could not be tendering you could not be tendering they could not be tendering
Perfecto
I could not have tendered you could not have tendered he could not have tendered we could not have tendered you could not have tendered they could not have tendered
Perfecto con V-ing
I could not have been tendering you could not have been tendering he could not have been tendering we could not have been tendering you could not have been tendering they could not have been tendering
Forma interrogativa
Forma simple
could I tender? could you tender? could he tender? could we tender? could you tender? could they tender?
Forma con V-ing
could I be tendering? could you be tendering? could he be tendering? could we be tendering? could you be tendering? could they be tendering?
Perfecto
could I have tendered? could you have tendered? could he have tendered? could we have tendered? could you have tendered? could they have tendered?
Perfecto con V-ing
could I have been tendering? could you have been tendering? could he have been tendering? could we have been tendering? could you have been tendering? could they have been tendering?
Forma interro-negativa
Forma simple
could I not tender? could you not tender? could he not tender? could we not tender? could you not tender? could they not tender?
Forma con V-ing
could I not be tendering? could you not be tendering? could he not be tendering? could we not be tendering? could you not be tendering? could they not be tendering?
Perfecto
could I not have tendered? could you not have tendered? could he not have tendered? could we not have tendered? could you not have tendered? could they not have tendered?
Perfecto con V-ing
could I not have been tendering? could you not have been tendering? could he not have been tendering? could we not have been tendering? could you not have been tendering? could they not have been tendering?