What is the difference between 気にしない and 気にすることない


What is the difference between 気にしない and 気にすることない

My bad, not enough context. The first one is 、気にしないでね。at the end of the
sentence after comma. The second one is a separate sentence 気にすることないわ。at the
end of a phrase. Seems like they mean same thing. I encountered 気にしないで
multiple times, whereas this is the first time I see 気にすることない. This is why I
am asking.




Do you realize that しないで in 気にしないでね is one part and should not be separated?

しないで is one of the te-forms of しない, the other being しなくて. Te-form has several
functions, and the one being used here is to make requests. When making
requests, people prefer しないで over しなくて, so the sentence 気にしないでね is requesting
the other party to not mind.

> 気にしないでね。 Please don't mind.

Then, the other one 気にすることないわ has no element of request in it, so the speaker
is talking about self. "I will not mind." It's pretty much the same thing as
気にしない, both mean "I don't mind", but 気にすることない has a stronger emphasis, and
indicates that the speaker is not just not mining now, but also won't mind in
the future. Let's translate them literally into English and see:

> 気にしない I don't mind. (or I won't mind)  
>  気にすることない The action of me minding doesn't exist.

See how the second one brings a stronger emphasis? I know for a English
speaker, the second sentence sounds redundant and too wordy, but that's
literally what the Japanese sentence means, and in Japanese, it's a perfectly
fine sentence, not redundant or wordy at all.




Do you realize that しないで in 気にしないでね is one part and should not be separated?

しないで is one of the te-forms of しない, the other being しなくて. Te-form has several
functions, and the one being used here is to make requests. When making
requests, people prefer しないで over しなくて, so the sentence 気にしないでね is requesting
the other party to not mind.

> 気にしないでね。 Please don't mind.

Then, the other one 気にすることないわ has no element of request in it, so the speaker
is talking about self. "I will not mind." It's pretty much the same thing as
気にしない, both mean "I don't mind", but 気にすることない has a stronger emphasis, and
indicates that the speaker is not just not mining now, but also won't mind in
the future. Let's translate them literally into English and see:

> 気にしない I don't mind. (or I won't mind)  
>  気にすることない The action of me minding doesn't exist.

See how the second one brings a stronger emphasis? I know for a English
speaker, the second sentence sounds redundant and too wordy, but that's
literally what the Japanese sentence means, and in Japanese, it's a perfectly
fine sentence, not redundant or wordy at all.

