I could mock you could mock he could mock we could mock you could mock they could mock
V-ing form
I could be mocking you could be mocking he could be mocking we could be mocking you could be mocking they could be mocking
Perfect
I could have mocked you could have mocked he could have mocked we could have mocked you could have mocked they could have mocked
V-ing perfect
I could have been mocking you could have been mocking he could have been mocking we could have been mocking you could have been mocking they could have been mocking
Negation
Simple form
I could not mock you could not mock he could not mock we could not mock you could not mock they could not mock
V-ing form
I could not be mocking you could not be mocking he could not be mocking we could not be mocking you could not be mocking they could not be mocking
Perfect
I could not have mocked you could not have mocked he could not have mocked we could not have mocked you could not have mocked they could not have mocked
V-ing perfect
I could not have been mocking you could not have been mocking he could not have been mocking we could not have been mocking you could not have been mocking they could not have been mocking
Interrogative form
Simple form
could I mock? could you mock? could he mock? could we mock? could you mock? could they mock?
V-ing form
could I be mocking? could you be mocking? could he be mocking? could we be mocking? could you be mocking? could they be mocking?
Perfect
could I have mocked? could you have mocked? could he have mocked? could we have mocked? could you have mocked? could they have mocked?
V-ing perfect
could I have been mocking? could you have been mocking? could he have been mocking? could we have been mocking? could you have been mocking? could they have been mocking?
Interro-negative form
Simple form
could I not mock? could you not mock? could he not mock? could we not mock? could you not mock? could they not mock?
V-ing form
could I not be mocking? could you not be mocking? could he not be mocking? could we not be mocking? could you not be mocking? could they not be mocking?
Perfect
could I not have mocked? could you not have mocked? could he not have mocked? could we not have mocked? could you not have mocked? could they not have mocked?
V-ing perfect
could I not have been mocking? could you not have been mocking? could he not have been mocking? could we not have been mocking? could you not have been mocking? could they not have been mocking?