I could attrite you could attrite he could attrite we could attrite you could attrite they could attrite
V-ing form
I could be attriting you could be attriting he could be attriting we could be attriting you could be attriting they could be attriting
Perfect
I could have attrited you could have attrited he could have attrited we could have attrited you could have attrited they could have attrited
V-ing perfect
I could have been attriting you could have been attriting he could have been attriting we could have been attriting you could have been attriting they could have been attriting
Negation
Simple form
I could not attrite you could not attrite he could not attrite we could not attrite you could not attrite they could not attrite
V-ing form
I could not be attriting you could not be attriting he could not be attriting we could not be attriting you could not be attriting they could not be attriting
Perfect
I could not have attrited you could not have attrited he could not have attrited we could not have attrited you could not have attrited they could not have attrited
V-ing perfect
I could not have been attriting you could not have been attriting he could not have been attriting we could not have been attriting you could not have been attriting they could not have been attriting
Interrogative form
Simple form
could I attrite? could you attrite? could he attrite? could we attrite? could you attrite? could they attrite?
V-ing form
could I be attriting? could you be attriting? could he be attriting? could we be attriting? could you be attriting? could they be attriting?
Perfect
could I have attrited? could you have attrited? could he have attrited? could we have attrited? could you have attrited? could they have attrited?
V-ing perfect
could I have been attriting? could you have been attriting? could he have been attriting? could we have been attriting? could you have been attriting? could they have been attriting?
Interro-negative form
Simple form
could I not attrite? could you not attrite? could he not attrite? could we not attrite? could you not attrite? could they not attrite?
V-ing form
could I not be attriting? could you not be attriting? could he not be attriting? could we not be attriting? could you not be attriting? could they not be attriting?
Perfect
could I not have attrited? could you not have attrited? could he not have attrited? could we not have attrited? could you not have attrited? could they not have attrited?
V-ing perfect
could I not have been attriting? could you not have been attriting? could he not have been attriting? could we not have been attriting? could you not have been attriting? could they not have been attriting?