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> **筆記試験の重要性は今更説明するまでもないが、学校はこれまで、体育祭や合宿くらいなもので他学年との交流を深くは行ってこなかった。**

It was a sentence from a light novel **ようこそ実力至上主義の教室へ** that I'm reading at
this moment. The school is going to hold a special exam where the second grade
students have to pair-up with the first grade students to face a written
tests, and it was a new kind of exam where the students from a different
academic year were involved as a team. The above-mentioned sentence was spoken
by the homeroom teacher towards the students.

If I translated the sentence in english, it will be like: "I don’t need to
explain the importance of the written test to you once again, but the school (
**行ってこなかった** ) friendly interaction with the other academic years, only during
the Sports Festival and the Training Camp so far."

I read from [here](https://jlptsensei.com/learn-japanese-
grammar/%E3%81%8F%E3%82%89%E3%81%84%E3%81%AE%E3%82%82%E3%81%AE%E3%81%A0-%E3%81%90%E3%82%89%E3%81%84%E3%81%AE%E3%82%82%E3%81%AE%E3%81%A0-kurai-
no-mono-da-meaning/) that **くらいのものだ** means ' **only** ', and **のもの** can also
be interchanged with **なもの**. That's why I would translate **くらいなもので** as '
**only during** '. (it fits with the situation in the story, but I wondered if
I have interpreted it properly)

I'm confused with the meaning of **行ってこなかった** in that sentence, is it came
from **行く** or **行う**? And it was the students who didn't have much friendly
interaction with the students from the other academic years, not the school
itself. But that sentence mentioned the school instead of the students, it
makes me doubt whether I have made a wrong interpretation of that sentence.

Please kindly give me your guidance. Thank you.
CC BY-SA 4.0
2020-03-27T12:21:18.657
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2020-03-27T22:25:33.443
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question
meaning
行ってこなかった meaning
This 行って is not いって but おこなって ("to do/conduct/perform"). 行く and 行う look the
same in the te-/ta-form in kanji, but 交流を行く does not make sense because 交流 is
not a place. Its subject is the school itself, not the students.

This (-て)くる after おこなう is a subsidiary verb that roughly means "until today",
"over time", etc (see: [Difference between -ていく and
-てくる](https://japanese.stackexchange.com/q/676/5010) and [What are the
subtleties of "て Form＋くる"?](https://japanese.stackexchange.com/q/24962/5010)).

> 学校はこれまで、体育祭や合宿くらいなもので他学年との交流を深くは行ってこなかった。  
>  We only had the Sports Festival and the Camp; (aside from them) our school
> has not engaged in inter-grade activities deeply (until today).
CC BY-SA 4.0
2020-03-27T21:38:13.330
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2020-03-27T22:25:33.443
2020-03-27T22:25:33.443
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5010
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answer