What is the difference between the following sentences:

> ここは きょうしつ です。  
>  これは きょうしつ です。  
>  ここに きょうしつ です。
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2018-09-03T13:19:55.703
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2018-09-26T02:06:20.040
2018-09-03T13:53:46.277
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question
grammar usage
I want to know the difference between ここに and ここは
ここは きょうしつ です。  
Here is a classroom.

これは きょうしつ です。  
This is a classroom.

ここに きょうしつ です。  
Wrong. There is no subject. です is a verb that requires a subject.
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2018-09-25T13:46:31.337
61743
2018-09-25T13:46:31.337
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answer
You can say ここは教室です, literally "This place is classroom", to mean "I/We/You
are in a/the classroom", talking about the place you are now. For example you
can use it like this:

> A: ここはどこですか？ "Where are we?"  
>  B: ここは教室です。 "We are in a classroom."

You'd usually use これは教室です, literally "This is classroom", to mean "This/It is
a classroom." You could be talking about a place you're in, a room in front of
you, a photo or drawing you're looking at, etc. You can use it like this:

> A: これは[何]{なん}ですか？ "What is this? (pointing at a place/photo/drawing etc.)"  
>  B: これは教室です。 "It's a classroom."

You can also say ここは教室です / これは教室です to talk about the purpose of a room, as in:

> A: これは何の部屋ですか？ / ここは何をするところですか？  
>  "What is this room for?" / "What activity do you do here?"  
>  B: これは教室です。/ ここは教室です。  
>  "This is a classroom."

「ここに教室です。」 sounds unnatural to me. 「[place]+に」, literally "in [place]" or "to
[place]", is used with the verbs of existence such as 「いる」「ある」「住む」 etc, or
motion verbs such as 「行く」「来る」「向かう」「帰る」 etc. e.g:

> 「ここにいますよ。」 "I am here." (literally "(I) exist in this place")  
>  「ここに来てください。」 "Please come here." (literally "Please come to this place")
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2018-09-26T00:12:01.197
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2018-09-26T02:06:20.040
2018-09-26T02:06:20.040
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answer