Breakdown of wǒmen yùdìng le bāoxiāng.
Used after a verb. Marks that an action is completed.
Questions & Answers about wǒmen yùdìng le bāoxiāng.
Here, 了 marks the action as completed.
So 我们预订了包厢 means that the reservation has already been made. It does not simply mean past tense in the same way English does; it specifically shows that the action of reserving is finished.
Compare:
- 我们预订包厢。 = We reserve private rooms / We are reserving a private room / a more general statement depending on context
- 我们预订了包厢。 = We reserved / have reserved a private room
In this sentence, 了 is attached to the verb phrase, not functioning as a sentence-final 了 that marks a new situation or change of state.
No. That is a very common misunderstanding.
了 usually marks completion or a new situation, not simply past time. Very often a completed action happened in the past, so English translations use the past tense, but the core idea is aspect, not tense.
For example:
- 我吃了。 = I ate / I’ve eaten.
- 我明天到了给你打电话。 = I’ll call you when I arrive tomorrow.
In the second sentence, 了 appears even though the action is in the future, because it marks the completion of arriving.
So in 我们预订了包厢, 了 tells you the booking is already done.