I could footslog you could footslog she could footslog we could footslog you could footslog they could footslog
V-ing form
I could be footsloging you could be footsloging she could be footsloging we could be footsloging you could be footsloging they could be footsloging
Perfect
I could have footsloged you could have footsloged she could have footsloged we could have footsloged you could have footsloged they could have footsloged
V-ing perfect
I could have been footsloging you could have been footsloging she could have been footsloging we could have been footsloging you could have been footsloging they could have been footsloging
Negation
Simple form
I could not footslog you could not footslog she could not footslog we could not footslog you could not footslog they could not footslog
V-ing form
I could not be footsloging you could not be footsloging she could not be footsloging we could not be footsloging you could not be footsloging they could not be footsloging
Perfect
I could not have footsloged you could not have footsloged she could not have footsloged we could not have footsloged you could not have footsloged they could not have footsloged
V-ing perfect
I could not have been footsloging you could not have been footsloging she could not have been footsloging we could not have been footsloging you could not have been footsloging they could not have been footsloging
Interrogative form
Simple form
could I footslog? could you footslog? could she footslog? could we footslog? could you footslog? could they footslog?
V-ing form
could I be footsloging? could you be footsloging? could she be footsloging? could we be footsloging? could you be footsloging? could they be footsloging?
Perfect
could I have footsloged? could you have footsloged? could she have footsloged? could we have footsloged? could you have footsloged? could they have footsloged?
V-ing perfect
could I have been footsloging? could you have been footsloging? could she have been footsloging? could we have been footsloging? could you have been footsloging? could they have been footsloging?
Interro-negative form
Simple form
could I not footslog? could you not footslog? could she not footslog? could we not footslog? could you not footslog? could they not footslog?
V-ing form
could I not be footsloging? could you not be footsloging? could she not be footsloging? could we not be footsloging? could you not be footsloging? could they not be footsloging?
Perfect
could I not have footsloged? could you not have footsloged? could she not have footsloged? could we not have footsloged? could you not have footsloged? could they not have footsloged?
V-ing perfect
could I not have been footsloging? could you not have been footsloging? could she not have been footsloging? could we not have been footsloging? could you not have been footsloging? could they not have been footsloging?