でもbut (starting a new sentence)
でも starts a new sentence with "but". It is the everyday word in conversation. Inside one sentence, "but" is けど.
This book is long. But it is very interesting.
I'm tired. But it was fun.
How to form it
Sentence。 でも、+ new sentence
It comes first in the new sentence, usually with a comma after it.
Adding the other side
You say one thing, then something that goes against it. It works the same in polite and casual speech.
The weather is nice. But the wind is strong.
Today is Monday. But school is closed.
That room is small. But it is bright and clean.
Not in the middle of a sentence
English "but" can join two halves of one sentence. でも can't: it only starts a new one.
The rent is low. But it is far from the station.
Two sentences. でも starts the second.
The rent is low, but it is far from the station.
One sentence. けど ends the first half.
Not said: 家賃は
(The rent is low, but it is far from the station.)
Answering someone
At the start of a reply, でも pushes back on what was just said. Between friends or colleagues that is ordinary.
Let's walk to the station.
But it's raining.
To a teacher or a boss it can sound like making excuses. As the first word of a reply to an invitation it is blunt, whoever asked. Agreeing with something first takes the edge off.
Would you like to see a movie together tomorrow?
That sounds nice. But I have work tomorrow.
Close neighbours
けど・がN5
The same "but", inside one sentence. They can also lead gently into a request, which でも can't.
This room is small, but it is bright.
しかしN5
"However". For essays, reports, news and speeches, where でも sounds too chatty.
The rent is low. However, it is far from the station.
In an invitation or a suggestion, でも after a noun isn't "but". It is "or something", a light way to offer one thing among others.
Would you like to have some tea or something?
ても・でもN4
After a noun, or as the end of a て-form like 読んでも, and followed by something that holds anyway. It means "even" or "even if".
I'll go even if it rains.
Check yourself
1Which one is right?
Choose an answer to see why.
2A colleague asks you out to dinner tonight and you can't go. Which reply is friendlier?
Choose an answer to see why.
3What does this mean?
コーヒーでも
Choose an answer to see why.
More detail
Putting a fact right
でも doesn't say the other person is wrong. It adds something that points the other way. When someone simply has a fact wrong, the reply starts with いいえ.
The meeting starts at three, right?
No, it starts at two.
More sentences
This store is inexpensive. But it is closed today.
Mr. Tanaka is not coming. But Ms. Yamada is.
We'll make it if we leave now. But have you bought the tickets yet?