I could lack you could lack he could lack we could lack you could lack they could lack
Forma con V-ing
I could be lacking you could be lacking he could be lacking we could be lacking you could be lacking they could be lacking
Perfetto
I could have lacked you could have lacked he could have lacked we could have lacked you could have lacked they could have lacked
Perfetto con V-ing
I could have been lacking you could have been lacking he could have been lacking we could have been lacking you could have been lacking they could have been lacking
Negazione
Forma semplice
I could not lack you could not lack he could not lack we could not lack you could not lack they could not lack
Forma con V-ing
I could not be lacking you could not be lacking he could not be lacking we could not be lacking you could not be lacking they could not be lacking
Perfetto
I could not have lacked you could not have lacked he could not have lacked we could not have lacked you could not have lacked they could not have lacked
Perfetto con V-ing
I could not have been lacking you could not have been lacking he could not have been lacking we could not have been lacking you could not have been lacking they could not have been lacking
Forma interrogativa
Forma semplice
could I lack? could you lack? could he lack? could we lack? could you lack? could they lack?
Forma con V-ing
could I be lacking? could you be lacking? could he be lacking? could we be lacking? could you be lacking? could they be lacking?
Perfetto
could I have lacked? could you have lacked? could he have lacked? could we have lacked? could you have lacked? could they have lacked?
Perfetto con V-ing
could I have been lacking? could you have been lacking? could he have been lacking? could we have been lacking? could you have been lacking? could they have been lacking?
Forma interro-negativa
Forma semplice
could I not lack? could you not lack? could he not lack? could we not lack? could you not lack? could they not lack?
Forma con V-ing
could I not be lacking? could you not be lacking? could he not be lacking? could we not be lacking? could you not be lacking? could they not be lacking?
Perfetto
could I not have lacked? could you not have lacked? could he not have lacked? could we not have lacked? could you not have lacked? could they not have lacked?
Perfetto con V-ing
could I not have been lacking? could you not have been lacking? could he not have been lacking? could we not have been lacking? could you not have been lacking? could they not have been lacking?