I could amaze you could amaze he could amaze we could amaze you could amaze they could amaze
V-ing form
I could be amazing you could be amazing he could be amazing we could be amazing you could be amazing they could be amazing
Perfect
I could have amazed you could have amazed he could have amazed we could have amazed you could have amazed they could have amazed
V-ing perfect
I could have been amazing you could have been amazing he could have been amazing we could have been amazing you could have been amazing they could have been amazing
Negation
Simple form
I could not amaze you could not amaze he could not amaze we could not amaze you could not amaze they could not amaze
V-ing form
I could not be amazing you could not be amazing he could not be amazing we could not be amazing you could not be amazing they could not be amazing
Perfect
I could not have amazed you could not have amazed he could not have amazed we could not have amazed you could not have amazed they could not have amazed
V-ing perfect
I could not have been amazing you could not have been amazing he could not have been amazing we could not have been amazing you could not have been amazing they could not have been amazing
Interrogative form
Simple form
could I amaze? could you amaze? could he amaze? could we amaze? could you amaze? could they amaze?
V-ing form
could I be amazing? could you be amazing? could he be amazing? could we be amazing? could you be amazing? could they be amazing?
Perfect
could I have amazed? could you have amazed? could he have amazed? could we have amazed? could you have amazed? could they have amazed?
V-ing perfect
could I have been amazing? could you have been amazing? could he have been amazing? could we have been amazing? could you have been amazing? could they have been amazing?
Interro-negative form
Simple form
could I not amaze? could you not amaze? could he not amaze? could we not amaze? could you not amaze? could they not amaze?
V-ing form
could I not be amazing? could you not be amazing? could he not be amazing? could we not be amazing? could you not be amazing? could they not be amazing?
Perfect
could I not have amazed? could you not have amazed? could he not have amazed? could we not have amazed? could you not have amazed? could they not have amazed?
V-ing perfect
could I not have been amazing? could you not have been amazing? could he not have been amazing? could we not have been amazing? could you not have been amazing? could they not have been amazing?