What is the difference in nuance between using でも or は in the next sentences?:

> 今週の週末でもいい？
>
> 今週の週末はいい？

I got several and different replies about this topic, so I don't know what to
think about this.

One of these replies said that in the first one, only this weekend is
available to me. "(The weekend that is available tome is only this weekend,
but) Is it okay for you?". In the second one, I don't say so. You're just
asking if this weekend is convenient for him or her.

Is that true? How would you explain the difference? I find myself kind of
confused right now.
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2016-11-29T09:55:43.757
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grammar particles particle-でも
Difference between 今週の週末でもいい? and 今週の週末はいい?
> 今週の週末 **でも** いい？

In English, **Even if** i'll go this weekend, is it ok?  
The literal translation: Even this weekend is ok?

> 今週の週末 **は** いい？

In English, **If** i'll go this weekend, is it ok?  
The literal translation: this weekend is ok?

Those sentences seems someone to talk to companion is promising i'll go to
somewhere. So i translated that.
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First, although 今週の週末 is not wrong, you might wanna consider using 今週末
instead.

As for your question, I feel like there are many possibilities. It would be
very helpful to have some context or know what the previous sentences were.

今週の週末でもいい？  
Would usually mean

> This weekend is ok?

今週の週末はいい？  
Could mean

> Would this weekend also be ok?
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2016-11-29T10:22:51.183
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At the risk of winding up, within a few minutes, as one of those who tried to
help, I shall give it a shot. At the very least, I am a Japanese-speaker.

To me, the two sentences mean **_very_** different things from each other and
they are not interchangeable. That is unless you have a particular situation
in mind that is beyond my imagination.

> 「今週{こんしゅう}の週末{しゅうまつ} **でも** いい？」

This question is asked when the speaker wants/needs to do something with/for
the listener and wants to know if this weekend is convenient for the listener.

「いい」 here means "convenient" or "good" for **_doing_** something.

> 「今週の週末 **は** いい？」

In this sentence, the meaning of 「いい」 will be quite different than in the
first sentence. It means " ** _good (without doing something)_** ".

Suppose you bring home-grown vegetables to your friend's home on weekends on a
fairly regular basis. This coming weekend, however, your friend is going on a
4-day trip and will not be able to consume the vegetables if you brough them.
When you find out about your friend's trip on the phone, you might say
「じゃあ、今週末はいい？」 meaning that it would be good for both you and your friend if
you did **_not_** bring vegetables this weekend.

This usage of 「いい」 (and of 「は」) is extremely common among us native speakers,
but not at all among J-learners as far as I am aware. We speak like:

Mom: 「明日{あした}はお弁当{べんとう}いる？」"Do you need a bento tomorrow?"

Son: 「明日は **いい** 。明後日{あさって}お願{ねが}い。」"No, thanks! I'm fine (without a bento)
tomorrow. Please make one the day after tomorrow."
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As seen in the other answers, the translations can vary quite a bit depending
on the context. I perceive them like this:

> 今週の週末でもいい？

_How about this weekend?_

(The asker is open to other dates.)

* * *

> 今週の週末はいい？

_Is this weekend OK?_

(The asker is specifically asking about this weekend.)

* * *

でも basically translates to "or something". _"this weekend or something"_
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