Breakdown of kihonryoukin ga agatta ue ni, entairyoukin made aru.
Questions & Answers about kihonryoukin ga agatta ue ni, entairyoukin made aru.
In this sentence, うえに means on top of that, in addition, or to make matters worse.
So:
- 基本料金が上がった = the basic fee went up
- うえに = on top of that
- 延滞料金まである = there are even late fees
A key point is that うえに often adds another point of the same general direction. Here, both points are negative from the speaker’s perspective:
- the basic fee increased
- there are even late fees
So the feeling is something like: The basic fee went up, and on top of that, there are even late fees.
Because うえに attaches to a plain form, and here the speaker is treating the fee increase as a completed fact:
- 上がった = went up / has increased
So 上がったうえに means it went up, and on top of that...
If you said 上がるうえに, it would sound more like a general or future statement depending on context, which is less natural here.
Compare:
- 値段が上がったうえに、量も減った。
The price went up, and on top of that, the amount decreased.
The past form before うえに is very common when the first event/state has already happened.
