{1:SHORTANSWER:~%100%had been painting#An event that continued for some time in the past with a result visible in the past~%100%'d been painting#An event that continued for some time in the past with a result visible in the past~%100%had been painting---#An event that continued for some time in the past with a result visible in the past~%100%’d been painting#An event that continued for some time in the past with a result visible in the past}