group by function

i have a query like
select to_char(processdate, 'Month'),status
from tablename
group by
to_char(processdate, 'Month'), status;


this works fine . but in the select statement i want the whole column processdate as o/p not the month alone.
if i change it as

select processdate,status
from tablename
group by
to_char(processdate, 'Month'), status;
its not working
help me

That does not make any sense (to me).

Could you give some sample data and the expected result?

what should be returned, if 2 rows have the same month but different days?
so you have 2 dates (due to differend day) but only one row (due to group by), in which you have to return them both?