I could rearrange you could rearrange he could rearrange we could rearrange you could rearrange they could rearrange
V-ing form
I could be rearranging you could be rearranging he could be rearranging we could be rearranging you could be rearranging they could be rearranging
Perfect
I could have rearranged you could have rearranged he could have rearranged we could have rearranged you could have rearranged they could have rearranged
V-ing perfect
I could have been rearranging you could have been rearranging he could have been rearranging we could have been rearranging you could have been rearranging they could have been rearranging
Negation
Simple form
I could not rearrange you could not rearrange he could not rearrange we could not rearrange you could not rearrange they could not rearrange
V-ing form
I could not be rearranging you could not be rearranging he could not be rearranging we could not be rearranging you could not be rearranging they could not be rearranging
Perfect
I could not have rearranged you could not have rearranged he could not have rearranged we could not have rearranged you could not have rearranged they could not have rearranged
V-ing perfect
I could not have been rearranging you could not have been rearranging he could not have been rearranging we could not have been rearranging you could not have been rearranging they could not have been rearranging
Interrogative form
Simple form
could I rearrange? could you rearrange? could he rearrange? could we rearrange? could you rearrange? could they rearrange?
V-ing form
could I be rearranging? could you be rearranging? could he be rearranging? could we be rearranging? could you be rearranging? could they be rearranging?
Perfect
could I have rearranged? could you have rearranged? could he have rearranged? could we have rearranged? could you have rearranged? could they have rearranged?
V-ing perfect
could I have been rearranging? could you have been rearranging? could he have been rearranging? could we have been rearranging? could you have been rearranging? could they have been rearranging?
Interro-negative form
Simple form
could I not rearrange? could you not rearrange? could he not rearrange? could we not rearrange? could you not rearrange? could they not rearrange?
V-ing form
could I not be rearranging? could you not be rearranging? could he not be rearranging? could we not be rearranging? could you not be rearranging? could they not be rearranging?
Perfect
could I not have rearranged? could you not have rearranged? could he not have rearranged? could we not have rearranged? could you not have rearranged? could they not have rearranged?
V-ing perfect
could I not have been rearranging? could you not have been rearranging? could he not have been rearranging? could we not have been rearranging? could you not have been rearranging? could they not have been rearranging?