I could ad-lib you could ad-lib he could ad-lib we could ad-lib you could ad-lib they could ad-lib
Forma con V-ing
I could be ad-libing you could be ad-libing he could be ad-libing we could be ad-libing you could be ad-libing they could be ad-libing
Perfecto
I could have ad-libed you could have ad-libed he could have ad-libed we could have ad-libed you could have ad-libed they could have ad-libed
Perfecto con V-ing
I could have been ad-libing you could have been ad-libing he could have been ad-libing we could have been ad-libing you could have been ad-libing they could have been ad-libing
Negación
Forma simple
I could not ad-lib you could not ad-lib he could not ad-lib we could not ad-lib you could not ad-lib they could not ad-lib
Forma con V-ing
I could not be ad-libing you could not be ad-libing he could not be ad-libing we could not be ad-libing you could not be ad-libing they could not be ad-libing
Perfecto
I could not have ad-libed you could not have ad-libed he could not have ad-libed we could not have ad-libed you could not have ad-libed they could not have ad-libed
Perfecto con V-ing
I could not have been ad-libing you could not have been ad-libing he could not have been ad-libing we could not have been ad-libing you could not have been ad-libing they could not have been ad-libing
Forma interrogativa
Forma simple
could I ad-lib? could you ad-lib? could he ad-lib? could we ad-lib? could you ad-lib? could they ad-lib?
Forma con V-ing
could I be ad-libing? could you be ad-libing? could he be ad-libing? could we be ad-libing? could you be ad-libing? could they be ad-libing?
Perfecto
could I have ad-libed? could you have ad-libed? could he have ad-libed? could we have ad-libed? could you have ad-libed? could they have ad-libed?
Perfecto con V-ing
could I have been ad-libing? could you have been ad-libing? could he have been ad-libing? could we have been ad-libing? could you have been ad-libing? could they have been ad-libing?
Forma interro-negativa
Forma simple
could I not ad-lib? could you not ad-lib? could he not ad-lib? could we not ad-lib? could you not ad-lib? could they not ad-lib?
Forma con V-ing
could I not be ad-libing? could you not be ad-libing? could he not be ad-libing? could we not be ad-libing? could you not be ad-libing? could they not be ad-libing?
Perfecto
could I not have ad-libed? could you not have ad-libed? could he not have ad-libed? could we not have ad-libed? could you not have ad-libed? could they not have ad-libed?
Perfecto con V-ing
could I not have been ad-libing? could you not have been ad-libing? could he not have been ad-libing? could we not have been ad-libing? could you not have been ad-libing? could they not have been ad-libing?