I could jinx you could jinx he could jinx we could jinx you could jinx they could jinx
V-ing form
I could be jinxing you could be jinxing he could be jinxing we could be jinxing you could be jinxing they could be jinxing
Perfect
I could have jinxed you could have jinxed he could have jinxed we could have jinxed you could have jinxed they could have jinxed
V-ing perfect
I could have been jinxing you could have been jinxing he could have been jinxing we could have been jinxing you could have been jinxing they could have been jinxing
Negation
Simple form
I could not jinx you could not jinx he could not jinx we could not jinx you could not jinx they could not jinx
V-ing form
I could not be jinxing you could not be jinxing he could not be jinxing we could not be jinxing you could not be jinxing they could not be jinxing
Perfect
I could not have jinxed you could not have jinxed he could not have jinxed we could not have jinxed you could not have jinxed they could not have jinxed
V-ing perfect
I could not have been jinxing you could not have been jinxing he could not have been jinxing we could not have been jinxing you could not have been jinxing they could not have been jinxing
Interrogative form
Simple form
could I jinx? could you jinx? could he jinx? could we jinx? could you jinx? could they jinx?
V-ing form
could I be jinxing? could you be jinxing? could he be jinxing? could we be jinxing? could you be jinxing? could they be jinxing?
Perfect
could I have jinxed? could you have jinxed? could he have jinxed? could we have jinxed? could you have jinxed? could they have jinxed?
V-ing perfect
could I have been jinxing? could you have been jinxing? could he have been jinxing? could we have been jinxing? could you have been jinxing? could they have been jinxing?
Interro-negative form
Simple form
could I not jinx? could you not jinx? could he not jinx? could we not jinx? could you not jinx? could they not jinx?
V-ing form
could I not be jinxing? could you not be jinxing? could he not be jinxing? could we not be jinxing? could you not be jinxing? could they not be jinxing?
Perfect
could I not have jinxed? could you not have jinxed? could he not have jinxed? could we not have jinxed? could you not have jinxed? could they not have jinxed?
V-ing perfect
could I not have been jinxing? could you not have been jinxing? could he not have been jinxing? could we not have been jinxing? could you not have been jinxing? could they not have been jinxing?