I could defame you could defame he could defame we could defame you could defame they could defame
V-ing form
I could be defaming you could be defaming he could be defaming we could be defaming you could be defaming they could be defaming
Perfect
I could have defamed you could have defamed he could have defamed we could have defamed you could have defamed they could have defamed
V-ing perfect
I could have been defaming you could have been defaming he could have been defaming we could have been defaming you could have been defaming they could have been defaming
Negation
Simple form
I could not defame you could not defame he could not defame we could not defame you could not defame they could not defame
V-ing form
I could not be defaming you could not be defaming he could not be defaming we could not be defaming you could not be defaming they could not be defaming
Perfect
I could not have defamed you could not have defamed he could not have defamed we could not have defamed you could not have defamed they could not have defamed
V-ing perfect
I could not have been defaming you could not have been defaming he could not have been defaming we could not have been defaming you could not have been defaming they could not have been defaming
Interrogative form
Simple form
could I defame? could you defame? could he defame? could we defame? could you defame? could they defame?
V-ing form
could I be defaming? could you be defaming? could he be defaming? could we be defaming? could you be defaming? could they be defaming?
Perfect
could I have defamed? could you have defamed? could he have defamed? could we have defamed? could you have defamed? could they have defamed?
V-ing perfect
could I have been defaming? could you have been defaming? could he have been defaming? could we have been defaming? could you have been defaming? could they have been defaming?
Interro-negative form
Simple form
could I not defame? could you not defame? could he not defame? could we not defame? could you not defame? could they not defame?
V-ing form
could I not be defaming? could you not be defaming? could he not be defaming? could we not be defaming? could you not be defaming? could they not be defaming?
Perfect
could I not have defamed? could you not have defamed? could he not have defamed? could we not have defamed? could you not have defamed? could they not have defamed?
V-ing perfect
could I not have been defaming? could you not have been defaming? could he not have been defaming? could we not have been defaming? could you not have been defaming? could they not have been defaming?