I could botch you could botch he could botch we could botch you could botch they could botch
V-ing form
I could be botching you could be botching he could be botching we could be botching you could be botching they could be botching
Perfect
I could have botched you could have botched he could have botched we could have botched you could have botched they could have botched
V-ing perfect
I could have been botching you could have been botching he could have been botching we could have been botching you could have been botching they could have been botching
Negation
Simple form
I could not botch you could not botch he could not botch we could not botch you could not botch they could not botch
V-ing form
I could not be botching you could not be botching he could not be botching we could not be botching you could not be botching they could not be botching
Perfect
I could not have botched you could not have botched he could not have botched we could not have botched you could not have botched they could not have botched
V-ing perfect
I could not have been botching you could not have been botching he could not have been botching we could not have been botching you could not have been botching they could not have been botching
Interrogative form
Simple form
could I botch? could you botch? could he botch? could we botch? could you botch? could they botch?
V-ing form
could I be botching? could you be botching? could he be botching? could we be botching? could you be botching? could they be botching?
Perfect
could I have botched? could you have botched? could he have botched? could we have botched? could you have botched? could they have botched?
V-ing perfect
could I have been botching? could you have been botching? could he have been botching? could we have been botching? could you have been botching? could they have been botching?
Interro-negative form
Simple form
could I not botch? could you not botch? could he not botch? could we not botch? could you not botch? could they not botch?
V-ing form
could I not be botching? could you not be botching? could he not be botching? could we not be botching? could you not be botching? could they not be botching?
Perfect
could I not have botched? could you not have botched? could he not have botched? could we not have botched? could you not have botched? could they not have botched?
V-ing perfect
could I not have been botching? could you not have been botching? could he not have been botching? could we not have been botching? could you not have been botching? could they not have been botching?