I could restable you could restable he could restable we could restable you could restable they could restable
V-ing form
I could be restabling you could be restabling he could be restabling we could be restabling you could be restabling they could be restabling
Perfect
I could have restabled you could have restabled he could have restabled we could have restabled you could have restabled they could have restabled
V-ing perfect
I could have been restabling you could have been restabling he could have been restabling we could have been restabling you could have been restabling they could have been restabling
Negation
Simple form
I could not restable you could not restable he could not restable we could not restable you could not restable they could not restable
V-ing form
I could not be restabling you could not be restabling he could not be restabling we could not be restabling you could not be restabling they could not be restabling
Perfect
I could not have restabled you could not have restabled he could not have restabled we could not have restabled you could not have restabled they could not have restabled
V-ing perfect
I could not have been restabling you could not have been restabling he could not have been restabling we could not have been restabling you could not have been restabling they could not have been restabling
Interrogative form
Simple form
could I restable? could you restable? could he restable? could we restable? could you restable? could they restable?
V-ing form
could I be restabling? could you be restabling? could he be restabling? could we be restabling? could you be restabling? could they be restabling?
Perfect
could I have restabled? could you have restabled? could he have restabled? could we have restabled? could you have restabled? could they have restabled?
V-ing perfect
could I have been restabling? could you have been restabling? could he have been restabling? could we have been restabling? could you have been restabling? could they have been restabling?
Interro-negative form
Simple form
could I not restable? could you not restable? could he not restable? could we not restable? could you not restable? could they not restable?
V-ing form
could I not be restabling? could you not be restabling? could he not be restabling? could we not be restabling? could you not be restabling? could they not be restabling?
Perfect
could I not have restabled? could you not have restabled? could he not have restabled? could we not have restabled? could you not have restabled? could they not have restabled?
V-ing perfect
could I not have been restabling? could you not have been restabling? could he not have been restabling? could we not have been restabling? could you not have been restabling? could they not have been restabling?