[Grammar in use Inter] UNIT 11 ~ 20

UNIT12
When ~ ? : 특정 시점을 찝어주는 표현( + simple past ) ( have pp 는 사용할 수 없음 )


UNIT13
I lost my key. ( 예전에 이미 잊어버렸고, 지금 아무 영향을 미치지 않음 )
I've lost my key. ( 키를 잊어버려서 지금 집에 못 들어가고 있는 상황... )


UNIT17
I didn't use to like him( 그를 좋아하지 않았었다 ) 과거 : 안그렇다. 현재 : 그렇다.
Did you use to eat a lot of candy when you were a child? 어릴 때 사탕 많이 먹고 그랬었나? ( 현재 : 안 그럼 )

I used to live alone. ( = I lived alone in the past, but I no longer live alone )
I'm used to doing ( 혼자사는데 익숙하다 )


UNIT18
Timetables, schedules - 미래라도 현재형을 사용
What time does the plane leave tomorrow?
= What time are you leaving tomorrow?


UNIT19
I was going to do something = I intended to do it but didn't do it. 하려고 했으나 하지 않았다.
 ex ) We were going to travel by train, but then we decided to drive instead.

something is going to happen in the future = the situation now makes us believe this.
 ex ) He is going to fall into the hole. ( 그 사람이 구멍에 곧 빠질 것 같은 상황으로 보일 때 )