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