I could flog you could flog he could flog we could flog you could flog they could flog
V-ing form
I could be flogging you could be flogging he could be flogging we could be flogging you could be flogging they could be flogging
Perfect
I could have flogged you could have flogged he could have flogged we could have flogged you could have flogged they could have flogged
V-ing perfect
I could have been flogging you could have been flogging he could have been flogging we could have been flogging you could have been flogging they could have been flogging
Negation
Simple form
I could not flog you could not flog he could not flog we could not flog you could not flog they could not flog
V-ing form
I could not be flogging you could not be flogging he could not be flogging we could not be flogging you could not be flogging they could not be flogging
Perfect
I could not have flogged you could not have flogged he could not have flogged we could not have flogged you could not have flogged they could not have flogged
V-ing perfect
I could not have been flogging you could not have been flogging he could not have been flogging we could not have been flogging you could not have been flogging they could not have been flogging
Interrogative form
Simple form
could I flog? could you flog? could he flog? could we flog? could you flog? could they flog?
V-ing form
could I be flogging? could you be flogging? could he be flogging? could we be flogging? could you be flogging? could they be flogging?
Perfect
could I have flogged? could you have flogged? could he have flogged? could we have flogged? could you have flogged? could they have flogged?
V-ing perfect
could I have been flogging? could you have been flogging? could he have been flogging? could we have been flogging? could you have been flogging? could they have been flogging?
Interro-negative form
Simple form
could I not flog? could you not flog? could he not flog? could we not flog? could you not flog? could they not flog?
V-ing form
could I not be flogging? could you not be flogging? could he not be flogging? could we not be flogging? could you not be flogging? could they not be flogging?
Perfect
could I not have flogged? could you not have flogged? could he not have flogged? could we not have flogged? could you not have flogged? could they not have flogged?
V-ing perfect
could I not have been flogging? could you not have been flogging? could he not have been flogging? could we not have been flogging? could you not have been flogging? could they not have been flogging?