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When, before and after

Khi, trước khi, sau khi · Elementary · 4 examples

Pattern

Khi / Trước khi / Sau khi + [clause], [clause]

Put khi (when), trước khi (before) or sau khi (after) in front of a whole clause to set the time. The main clause follows after a comma, or comes first without any comma. No verb changes are needed.

Tip: Add đã or sẽ only when the time is not clear: Khi tôi đến, trời đang mưa.

Examples

  • Khi tôi đến, trời đang mưa.

    When I arrived, it was raining.

  • Trước khi ăn, tôi rửa tay.

    Before eating, I wash my hands.

  • Sau khi tan làm, chúng tôi đi uống cà phê.

    After work, we go for coffee.

  • Tôi gọi cho bạn khi tôi về đến nhà.

    I'll call you when I get home.

Try it

Exercises built from the examples above.