I could ballast you could ballast he could ballast we could ballast you could ballast they could ballast
Forma con V-ing
I could be ballasting you could be ballasting he could be ballasting we could be ballasting you could be ballasting they could be ballasting
Perfecto
I could have ballasted you could have ballasted he could have ballasted we could have ballasted you could have ballasted they could have ballasted
Perfecto con V-ing
I could have been ballasting you could have been ballasting he could have been ballasting we could have been ballasting you could have been ballasting they could have been ballasting
Negación
Forma simple
I could not ballast you could not ballast he could not ballast we could not ballast you could not ballast they could not ballast
Forma con V-ing
I could not be ballasting you could not be ballasting he could not be ballasting we could not be ballasting you could not be ballasting they could not be ballasting
Perfecto
I could not have ballasted you could not have ballasted he could not have ballasted we could not have ballasted you could not have ballasted they could not have ballasted
Perfecto con V-ing
I could not have been ballasting you could not have been ballasting he could not have been ballasting we could not have been ballasting you could not have been ballasting they could not have been ballasting
Forma interrogativa
Forma simple
could I ballast? could you ballast? could he ballast? could we ballast? could you ballast? could they ballast?
Forma con V-ing
could I be ballasting? could you be ballasting? could he be ballasting? could we be ballasting? could you be ballasting? could they be ballasting?
Perfecto
could I have ballasted? could you have ballasted? could he have ballasted? could we have ballasted? could you have ballasted? could they have ballasted?
Perfecto con V-ing
could I have been ballasting? could you have been ballasting? could he have been ballasting? could we have been ballasting? could you have been ballasting? could they have been ballasting?
Forma interro-negativa
Forma simple
could I not ballast? could you not ballast? could he not ballast? could we not ballast? could you not ballast? could they not ballast?
Forma con V-ing
could I not be ballasting? could you not be ballasting? could he not be ballasting? could we not be ballasting? could you not be ballasting? could they not be ballasting?
Perfecto
could I not have ballasted? could you not have ballasted? could he not have ballasted? could we not have ballasted? could you not have ballasted? could they not have ballasted?
Perfecto con V-ing
could I not have been ballasting? could you not have been ballasting? could he not have been ballasting? could we not have been ballasting? could you not have been ballasting? could they not have been ballasting?