{1:SHORTANSWER:~%100%had been trying #An event that continued for some time in the past before some other past events~%100%’d been trying #An event that continued for some time in the past before some other past events~%100%had been trying---------- #An event that continued for some time in the past before some other past events~%100%'d been trying #An event that continued for some time in the past before some other past events}