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Had some trouble with the translation. I know that 気をつける means "to be careful"
but I had trouble with the なさいよ part.
CC BY-SA 4.0
2018-10-29T23:58:55.833
62512
2018-10-30T00:23:51.380
31755
question
grammar
What does the なさいよ in 気をつけなさいよ mean?
First off, we need to split なさい and よ . They are two different things.

なさい polite command/request form of なさる (like ください as a form of くださる) .

[なさる](https://dictionary.goo.ne.jp/jn/163920/meaning/m0u/) is itself 尊敬語
(keigo) for する ...

* * *

[よ](https://dictionary.goo.ne.jp/jn/226011/meaning/m0u/)

よ is often used at the end of Japanese sentences. Its presence/absence does
not normally change the basic meaning. Instead, it marks a variety of nuances
depending on whether the speaker is male/female.

Here, I think it means that it's a request.
CC BY-SA 4.0
2018-10-30T00:23:51.380
62513
2018-10-30T00:23:51.380
4091
62512
answer