I could belong you could belong he could belong we could belong you could belong they could belong
V-ing form
I could be belonging you could be belonging he could be belonging we could be belonging you could be belonging they could be belonging
Perfect
I could have belonged you could have belonged he could have belonged we could have belonged you could have belonged they could have belonged
V-ing perfect
I could have been belonging you could have been belonging he could have been belonging we could have been belonging you could have been belonging they could have been belonging
Negation
Simple form
I could not belong you could not belong he could not belong we could not belong you could not belong they could not belong
V-ing form
I could not be belonging you could not be belonging he could not be belonging we could not be belonging you could not be belonging they could not be belonging
Perfect
I could not have belonged you could not have belonged he could not have belonged we could not have belonged you could not have belonged they could not have belonged
V-ing perfect
I could not have been belonging you could not have been belonging he could not have been belonging we could not have been belonging you could not have been belonging they could not have been belonging
Interrogative form
Simple form
could I belong? could you belong? could he belong? could we belong? could you belong? could they belong?
V-ing form
could I be belonging? could you be belonging? could he be belonging? could we be belonging? could you be belonging? could they be belonging?
Perfect
could I have belonged? could you have belonged? could he have belonged? could we have belonged? could you have belonged? could they have belonged?
V-ing perfect
could I have been belonging? could you have been belonging? could he have been belonging? could we have been belonging? could you have been belonging? could they have been belonging?
Interro-negative form
Simple form
could I not belong? could you not belong? could he not belong? could we not belong? could you not belong? could they not belong?
V-ing form
could I not be belonging? could you not be belonging? could he not be belonging? could we not be belonging? could you not be belonging? could they not be belonging?
Perfect
could I not have belonged? could you not have belonged? could he not have belonged? could we not have belonged? could you not have belonged? could they not have belonged?
V-ing perfect
could I not have been belonging? could you not have been belonging? could he not have been belonging? could we not have been belonging? could you not have been belonging? could they not have been belonging?