before

S1 W1

in Vietnamese trước khi, trước

BrE /bɪˈfɔː/ AmE /bɪˈfoʊ/

preposition / conjunction en → vi

1 TIME [T + obj] A1

trước khi, trước

at an earlier time than a specified event or period of time

  • before something happens

Collocations before breakfast · before lunch

  • I'll see you before the meeting.

    Tôi sẽ gặp bạn trước cuộc họp.

2 ORDER [T + obj] A1

trước, đứng trước

in a position earlier in a list, order or sequence than something else

  • before something

Collocations before the main course · before dessert

  • We'll have coffee before dinner.

    Chúng tôi sẽ uống cà phê trước bữa tối.

3 CONDITION [T + obj] B1

nếu không, nếu không có

used to say that something must happen or be true in order for another thing to happen

  • before you can do sth

Collocations before you can start · before you can leave

  • You must finish your homework before you can watch TV.

    Bạn phải hoàn thành bài tập về nhà trước khi được xem TV.

4 PREFERENCE [T + obj] B1

thích, ưu tiên

used to say that one thing is preferred or more important than another

  • before something else

Collocations before anything else · before everything else

  • We need to finish this project before we start any other work.

    Chúng tôi cần hoàn thành dự án này trước khi bắt đầu công việc khác.

5 PAST [T + obj] A2

trước đây, trước kia

used to refer to a time in the past, especially when comparing it with the present or future

  • before now

Collocations long before · a long time before

  • I lived in New York before I moved to London.

    Tôi đã sống ở New York trước khi chuyển đến London.

6 PAST PERFECT [T + obj] B1

đã (hoàn thành trước)

used to form the past perfect tense, indicating an action completed before another in the past

  • had done sth before
  • She had finished her work before she left the office.

    Cô ấy đã hoàn thành công việc trước khi rời văn phòng.

7 PAST CONTINUOUS [T + obj] B1

đang (hoàn thành trước)

used to form the past continuous tense, indicating an action in progress before another in the past

  • was/were doing sth before
  • She was reading a book before she went to bed.

    Cô ấy đang đọc một cuốn sách trước khi đi ngủ.

8 PAST SIMPLE [T + obj] B1

đã (hoàn thành trước)

used to form the past simple tense, indicating an action completed before another in the past

  • did sth before
  • He did his homework before he watched TV.

    Anh ấy đã làm bài tập về nhà trước khi xem TV.