I could gibbet you could gibbet she could gibbet we could gibbet you could gibbet they could gibbet
V-ing form
I could be gibbeting you could be gibbeting she could be gibbeting we could be gibbeting you could be gibbeting they could be gibbeting
Perfect
I could have gibbeted you could have gibbeted she could have gibbeted we could have gibbeted you could have gibbeted they could have gibbeted
V-ing perfect
I could have been gibbeting you could have been gibbeting she could have been gibbeting we could have been gibbeting you could have been gibbeting they could have been gibbeting
Negation
Simple form
I could not gibbet you could not gibbet she could not gibbet we could not gibbet you could not gibbet they could not gibbet
V-ing form
I could not be gibbeting you could not be gibbeting she could not be gibbeting we could not be gibbeting you could not be gibbeting they could not be gibbeting
Perfect
I could not have gibbeted you could not have gibbeted she could not have gibbeted we could not have gibbeted you could not have gibbeted they could not have gibbeted
V-ing perfect
I could not have been gibbeting you could not have been gibbeting she could not have been gibbeting we could not have been gibbeting you could not have been gibbeting they could not have been gibbeting
Interrogative form
Simple form
could I gibbet? could you gibbet? could she gibbet? could we gibbet? could you gibbet? could they gibbet?
V-ing form
could I be gibbeting? could you be gibbeting? could she be gibbeting? could we be gibbeting? could you be gibbeting? could they be gibbeting?
Perfect
could I have gibbeted? could you have gibbeted? could she have gibbeted? could we have gibbeted? could you have gibbeted? could they have gibbeted?
V-ing perfect
could I have been gibbeting? could you have been gibbeting? could she have been gibbeting? could we have been gibbeting? could you have been gibbeting? could they have been gibbeting?
Interro-negative form
Simple form
could I not gibbet? could you not gibbet? could she not gibbet? could we not gibbet? could you not gibbet? could they not gibbet?
V-ing form
could I not be gibbeting? could you not be gibbeting? could she not be gibbeting? could we not be gibbeting? could you not be gibbeting? could they not be gibbeting?
Perfect
could I not have gibbeted? could you not have gibbeted? could she not have gibbeted? could we not have gibbeted? could you not have gibbeted? could they not have gibbeted?
V-ing perfect
could I not have been gibbeting? could you not have been gibbeting? could she not have been gibbeting? could we not have been gibbeting? could you not have been gibbeting? could they not have been gibbeting?