he had been working for 30 years when he retired in 2010
when 이 명확한 과거시점을 나타내는데
기간을 담고있는 had been working 과거완료가 쓰일수있는지..
2022-05-29 05:52:41
he had been working for 30 years when he retired in 2010
when 이 명확한 과거시점을 나타내는데
기간을 담고있는 had been working 과거완료가 쓰일수있는지..
ㄱㅅ