Why Japanese People Say そう So Much

Everyday Japanese
11 フォロワー
1 動画再生回数·2026/08/11
AI生成·誤りが含まれる可能性があります
動画の概要
AI生成This video explains the core concept of the Japanese word \"そう\" (sou) and how it functions in conversation. Rather than memorizing numerous phrases separately, the instructor teaches a systemic approach: \"そう\" points to a situation or statement, while the suffixes determine the speaker's attitude, politeness, and intent.
Have you noticed that Japanese say そう all the time?
You might hear そう そうそう そうです そうですか そうか そうだね そうなんだ そうなんだね そうなんですね
They don't all contain the same word そう but they don't all mean exactly the same thing
Sometimes そうですか means I see
Sometimes そうなんですか means really?
Sometimes そうだね means yeah I agree
And sometimes Japanese people say そう そう そう そう
What does that even mean?
Many Japanese learners try to memorize each expression as a completely separate phrase
But you don't need to do that
All of these expressions have the same core
First, we have そう
Then, we add small expressions like そうです そうか そうだね そうなんだ
The first part points to a situation
The ending shows the speaker's feeling or attitude
Once you understand this structure, these expressions become much easier
So today, let's learn the core image of そう
And then, we'll look at what happens when we add different endings after it
Now, one quick note before we begin
So just remember, today we're going to talk about the conversational そう
We're not going to talk about expressions like おいしそうです そう
That means it looks delicious
Or 雨が降るそうです
I heard that it will rain
These are different uses of そう
So we're not going to talk about it
Don't worry about it
We're only going to focus on expressions like そうです そうか そうだね そうなんだ
Before we start
For years, I kept thinking
Are we something like this existed?
A place where I could simply write
Get corrections
Understand my mistakes
Learn naturally
Eventually, I stopped thinking
And I decided to build it myself
It's called 日本語ダイアリー
Just write about your day in Japanese
Your diary is corrected naturally
The way a native speaker would say it
Then you get a simple explanation
So you can understand why it changed
Not just what changed
Learn from your own writing
Start your 日本語ダイアリー today
Now let's begin with the core image
The core image of そう
First, have you ever heard of the word それ before?
I think you have
Imagine that you're holding a book
I can point to a book and ask
What is that?
I use それ because the book is close to you
The listener
And I'm the speaker
So Japanese has これ それ あれ
When something is close to me, the speaker, I say これ
When something is close to you, the listener, I say それ
When something is far away from both of us, I say あれ
So これ points to a thing close to me, that's これ
それ points to a thing that's close to you, the listener, それ
あれ points to a thing far from both of us, あれ
But Japanese doesn't only point to physical things
That's the main idea
Japanese can also point to a way, a condition, or a situation
Look at these words
こう
そう
You don't need to memorize all these today
The important word for this video is そう
You can think of それ and そう as a member of the same sou family
But they point to different things
Now それ points to a thing
It's gotta be a thing, right?
Now, when you say そう, the そう points to a way, a condition, or a situation
Now, let's look at an example
A says 明日は休みです
Tomorrow is a day off
Then B says そうです
そうです
That's right
What is そう pointing to here?
It's not pointing to a book
It's not pointing to a phone
It's pointing back to the whole situation
明日は休みです
So you can imagine B pointing to A's words and saying
そうです
That is how it is
That is the situation
This is a core image
So again それ points to a thing
そう points to a situation or what someone said
Very often the information comes from the listener
The listener gives you some information
So you point back to that information with そう
For example
田中さんは先生です
田中 is a teacher
B says そうです
That's right
Here, そう points to 田中さんは先生です
The previous information what A-san said
明日の授業は10時からです
Tomorrow's class starts at 10
B says そうです
That's right
Again, そう points to the whole information
明日の授業は10時からです
That is why そう is not simply the Japanese word for yes
Right
Now, Japanese also has はい
But はい and そう do not have exactly the same core image
はい is a direct response
It can show that you heard, understood or agreed
But そう points back to the information itself
A simple image is はい
Yes
そう
That is how it is
That is what I've heard
Of course in actual English, we often translate both as yes
But the Japanese image are slightly different
Right
Now, そう by itself
Let's begin with the shortest form
そう
With close friends or family, you may hear そう by itself
For example
A-san says
明日休みなの?
Are you off tomorrow?
B says そう
Yeah, that's right
Here, B is simply saying
That is the situation for tomorrow
But be careful
Because そう is very short
It can sometimes sound flat or cold
Imagine someone tells you
来月仕事を辞めます
I'm quitting my job next month
And you only answer そう
Depending on your voice, image sounds like
Okay, so?
I don't really care
It is not always rude
But it can be rude
So be careful with it
Friends may use it usually
But your tone and facial expressions are very important here
Now, compare these
そう
A flat voice can sound uninterested
But
あ、そう
With a brighter voice can sound more interested
Right
And そう
With rising intonation can mean
Really?
Is that so?
So even when the word is the same
The intonation changes the feeling
Right
そう
That's right
そう
Really?
When you have time, you can practice them
Yeah, with the right intonation in the right situation
Now, let's repeat it
そう、そう
Repeating そう makes the agreement stronger
It often means
Exactly
That's right
Yes, that's what I meant
For example, essays
田中さんって黒いメガネをかけている人?
B says
そう、そう
その人
Exactly
That's him
A says
駅の前にある赤いレストラン
The red restaurant in front of the station
B says
そう、そう
そこ
Yes, exactly
That's the place
Sometimes Japanese people repeat it even more
Just saying
そう、そう、そう、そう、そう
Each そう does not have a new meaning here
The repetition simply shows
Stronger and more excited agreement
You're still pointing to what the other person said
You're just saying
Yes, that information
That's exactly what I meant
Right?
Alright, next
Let's add this here
そう with です
そうです
This makes it polite
That's all
The basic image is
That is how it is
That is correct
That is the situation
For example
田中さんは日本語の先生ですか?
Is Mr. Tanaka a Japanese teacher?
And B says
はい、そうです
Yeah, that's right
Right, so
そうです is especially natural when it comes from a fact, identity, description, or piece of information
はい
Now next
Let's add か here
そう
Now we have
そうか
And そうですか
The basic image is the same
The main differences is the politeness level
そうか is casual
そうですか is polite
Many beginners learn
か equal a question
That is true
But it is not the whole story
Listen to this
来月日本に行きます
I'm gonna go to Japan next month
B says そうですか
Really
With rising intonation, it can sound like a question
そうですか
Is that so?
Really?
そうですか
The speaker may be surprised or may want a confirmation
But listen to this
来月日本に行きます
I'm gonna go to Japan next month
B says そうですか
いいですね
I see, that's nice
This time the intonation falls
Just like そうですか
The speaker is not really asking a question
They are receiving the new information
You can imagine the speaker thinking
Is that the situation?
Then accepting it
Oh I see
That is the situation
そうですか
So そうですか
Really?
そうですか
I see
The same thing happens with the casual form
そうか
Really?
そうか
I see
But because そうか is casual
You use it with friends, family or when talking to yourself
Right?
With a teacher, customer or someone you do not know well
Use そうですか
Okay
Now そうだね and そうですね
Now let's add ね
Again the core meaning is same
Just politeness level is different
そうだね is casual
そうですね is polite
The important part here is ね
I actually talked about this in my previous video
But ね
The particle ね shares information or feeling with the listener
So you are sharing the information
You can imagine it as
You feel this too, right?
For example
今日は寒いですね
It's cold today, isn't it?
And B says
そうですね
Yes, it is
この映画面白かったね
The movie was interesting, wasn't it?
B says
そうだね
Yeah, it was
So the image is
そう
That situation
You and I share it
That is why
そうだね and そうですね often mean
Yes, that's true
I agree
Yes, we feel the same way
There is also another common use of そうですね
Japanese people often say while thinking
For example
日本でどこに行きたいですか?
Where do you want to go in Japan?
B says
そうですね
北海道に行きたいです
Let me think
I want to go to Hokkaido
Here
そうですね does not mean
Yes, that's right
It works more like
Well, let me think
But the main image for today is still sharing or considering
The situation with the listener
Right?
Now そうなんだ and そうなんですね
Finally, let's look at one of the most common reactions in Japanese
そうなんだ
In a polite version
For today, you can think of them as having the same basic core
そうなんだ is casual
そうなんですね is polite and softer
The important part is
んだ
Right?
んだ is often used when we talk about the background
Reason, explanation or situation behind something
For example
今日は行けない
I can't go today
To simply gives the information
But
今日は行けないんだ
The situation is that I can't go today
This sounds more explanatory
Maybe there's a reason
Maybe the speaker is about to give more background
So when someone said you knew background information
You can respond with
そうなんだ
The images
Oh, so that's the situation
Oh, so that's what is happening
Sounds like you're connecting the reason with it behind the story
Right?
For example
来月日本に引っ越すんだ
I'm moving to Hokkaido next month
B says
そうなんだ
Oh, really?
B received the new situation
The polite version works in a similar way
来月北海道に引っ越します
I'm moving to Hokkaido next month
B says
そうなんですね
Oh, I see
Right, that's the way you use
そうなんだ
and
そうなんですね
Now you understand the core idea
First
We have
そう
It points to a situation or what someone said
Right?
Then Japanese at the small ending
We looked at
そうです
そうか
そうですか
そうだね
そうですね
そうなんだ
そうなんですね
But Japanese has many other expressions
そうかな
そうだよね
そうなんだけど
そういうことか
They may look like completely different phrases
But the system is the same
For example
そうかな
We can break it apart
そう
か
な
そう points to information
か adds a question or doubt
な sounds like speakers talking to themselves
Like reflecting themselves
So
そうかな would be
I wonder if that's true
So the other expressions with そう
would be just like that as well
So again
You don't need to memorize every situation as a completely different phrase
They all have the same core image
そう with something
So first
Find そう
Then look at what comes after
Right
はい
Now Japanese people use そう all the time
You may hear
そう
そうそう
そうです
そうか
そうなんだ
そうなんですね
But they're not random expressions
They all begin with the same core
そう
So remember
それ points to a thing
そう points to a situation or what someone said
Then the ending changes the speaker's attitude
です makes it polite
そうです
か receives question or understands information
そうか
そうですか
ね shares the information or feeling with the listener
そうだね
そうですね
That receives the background of situation
そうなんだ
そうなんですね
So you don't need to memorize every single expression separately
First
Understand
そう
Then listen to what comes after it
And once you understand the system
Longer expressions become much easier too
So did you understand the core image of そう?
If you did you can say
そういうことか
Right
そういうことか
Right
That's it for today's lesson
Thank you for watching guys
And I'll see you in the next video
Bye for now
