I could lay you could lay he could lay we could lay you could lay they could lay
Forma con V-ing
I could be laying you could be laying he could be laying we could be laying you could be laying they could be laying
Perfecto
I could have laid you could have laid he could have laid we could have laid you could have laid they could have laid
Perfecto con V-ing
I could have been laying you could have been laying he could have been laying we could have been laying you could have been laying they could have been laying
Negación
Forma simple
I could not lay you could not lay he could not lay we could not lay you could not lay they could not lay
Forma con V-ing
I could not be laying you could not be laying he could not be laying we could not be laying you could not be laying they could not be laying
Perfecto
I could not have laid you could not have laid he could not have laid we could not have laid you could not have laid they could not have laid
Perfecto con V-ing
I could not have been laying you could not have been laying he could not have been laying we could not have been laying you could not have been laying they could not have been laying
Forma interrogativa
Forma simple
could I lay? could you lay? could he lay? could we lay? could you lay? could they lay?
Forma con V-ing
could I be laying? could you be laying? could he be laying? could we be laying? could you be laying? could they be laying?
Perfecto
could I have laid? could you have laid? could he have laid? could we have laid? could you have laid? could they have laid?
Perfecto con V-ing
could I have been laying? could you have been laying? could he have been laying? could we have been laying? could you have been laying? could they have been laying?
Forma interro-negativa
Forma simple
could I not lay? could you not lay? could he not lay? could we not lay? could you not lay? could they not lay?
Forma con V-ing
could I not be laying? could you not be laying? could he not be laying? could we not be laying? could you not be laying? could they not be laying?
Perfecto
could I not have laid? could you not have laid? could he not have laid? could we not have laid? could you not have laid? could they not have laid?
Perfecto con V-ing
could I not have been laying? could you not have been laying? could he not have been laying? could we not have been laying? could you not have been laying? could they not have been laying?