Tell about a time something went wrong: what happened, what you did, how it ended.

Use BỊ for the unwanted events: «Tôi bị mất ví», «Tôi bị lạc đường». BỊ carries the speaker's judgement that the event was bad — this is not grammar but evaluation, and no European language does it.

Connectors: lúc đó, vì vậy, cuối cùng.