This question is closely related to a similar question I asked not long ago:

[送ってくれた : Why is both "sending" and "giving" being used together
here?](https://japanese.stackexchange.com/questions/57141/%E9%80%81%E3%81%A3%E3%81%A6%E3%81%8F%E3%82%8C%E3%81%9F-why-
is-both-sending-and-giving-being-used-together-
here?noredirect=1#comment98856_57141)

I now understand くれた being useful as an auxiliary verb meaning "did for
his/her/my (benefit)"

In this case I wanted to express a story to my Japanese friend about how when
I visited my girlfriend's father for the first time, he had a lot of questions
to interrogate me with.

My friend told me to say this: ​父さんはたくさん質問してくれました.

I did some more research, but I don't undertand how くれました is being used here.

It seems like it should mean this: "Her father had a lot of questions to give
me (for my benefit)"

I also came up with this variant on my own (is it correct?):
お父さんはたくさん質問して聞きました。 "Her father had a lot of questions to ask me."

Anyway, in the first case, the questions are interrogative, and thus not
necessarily wanted by myself, or for my benefit. Interrogative questions feel
more forced or imposed upon me, than "given" to me.

Am I misunderstanding the usage here? Is there a better way to express this?
CC BY-SA 3.0
2018-03-12T22:45:15.753
57231
2018-03-13T19:05:20.317
26432
question
grammar subsidiary-verbs
auxiliary verb くれた being used in context of "having questions"
This くれる is not really different from くれる in 送ってくれる you asked before. The
sentence just means Father asked a lot of question and _that fact was
beneficial (to you or your friend*)_. A lot of questions mean 父さん was
interested in you, and that fact itself is the beneficial thing here.

* I'm not entirely sure what was happening... maybe your friend and your girlfriend's father knew each other and was talking about you when you were not present?
CC BY-SA 3.0
2018-03-13T03:05:57.003
57243
2018-03-13T03:14:47.300
2018-03-13T03:14:47.300
5010
5010
57231
answer
I agree that using くれた at the end makes it sound like there was something that
you found beneficial in the questioning. It would be better to omit that part
if you don't want it to sound this way.

@naruto's answer is good at addressing the fact that, normally asking a lot of
questions to one's daughter's boyfriend, while uncomfortable, indicates that
he is at least willing to find out more about you: thereby demonstrating the
possibility of acceptance, which would be beneficial to you.

If, on the other hand, you want to make it sound closer to your suggested
meaning/nuance, you should probably substitute 質問する for another verb clause
like 尋問{じんもん｝する.

> 彼女のお父さんに、警察の尋問みたいに質問された。I was questioned by her father as though he were
> performing a police interrogation.
>
> 彼女のお父さんに質問された ... 尋問みたいに。I was questioned by her father, like an
> interrogation.
>
> 彼女のお父さんに厳しく質問された。I was questioned severely by her father.

Finally, I'm not sure if using these phrases in regards to one's potential
future father-in-law would be advisable and there might be better ways to
emphasize the feeling of being 'under the spotlight'. Possibly 職質（職務質問）みたいに,
etc. Maybe someone else has a suggestion.
CC BY-SA 3.0
2018-03-13T03:27:24.480
57244
2018-03-13T19:05:20.317
2020-06-17T08:18:27.500
-1
27280
57231
answer