Structure
Noun + です
Adjective + です
Details
Part of Speech
Auxiliary Verb
Word Type
Dependent Word
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Polite
About です
Similarly to だ, です is an auxiliary verb that is an expression of determination or assertion. It states that something 'is' a certain way. です is considered to be the polite variation of だ. Keep in mind though that although their roles are similar, both だ and です are standalone structures.
です connects to words in exactly the same way as だ, but is also regularly seen attached to the end of い-Adjectives.
Caution
Although です is regularly attached to the end of い-Adjectives, some may actually consider this incorrect Japanese, and it should not be used in formal writing. In daily spoken language/texting, however, it is completely normal.
The above example technically should not be used in formal writing. Despite this, in recent years, it is starting to become the norm.
Antonyms
Related
Examples
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あなたです。
It is you.
ペンです。
It is a pen.
さくらです。
(I) am Sakura.
友達です。
(He/she) is a friend.
暑いです。
It is hot.
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How to use です
80/20 Japanese
は and です
Japanese Ammo
Offline
Genki I 2nd Edition
Page 42
Tae Kim's Japanese Grammar Guide
Page 88
みんなの日本語 I
Page 14 [CH 1]
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です – Grammar Discussion
Most Recent Replies (6 in total)
Jake
to be/is
Structure
- Noun + です
- Adjective + です
[polite present tense]
View on Bunpro
Talos
I recommend the following article for those feeling unsure about how acceptable (or not), です attached to the end of い-Adjectives is.
https://www.dunwell.me/archives/2020/desu/
A few quotes:
However, unlike [である, だ, and でございます], です is used after adjectives. The acceptance of this usage dates back to 1952, when it was formally approved by the National Diet.
A full-text search of the fifth edition of Kōjien will return no examples of です used after an adjective, except for the one in the entry on です. It seems that although Kōjien acknowledges that such usage is considered correct, it neither employs nor actively recommends it.
Foreign writers of Japanese may sometimes wish to eschew the adjective+です construction to avoid sounding foreign or childish. Although it is widely ...
nekoyama
I think there are several problems with this article.
Most importantly, “incorrect according to the rules of traditional grammar” is technically correct, but how traditional is that grammar if even the National Diet was ok with it 70 years ago? To put this in perspective, if we apply the same principle to English:
- We can’t use “they” as a gender-neutral singular pronoun
- We can’t split infinitives as in “to boldly go”
- We can’t start sentences with a conjunction (this rule is still taught, but professional style guides accept it)
- We can’t use stative verbs in continuous form such as in “I’m loving it”
- We’d say “I like to eat” much more often than “I like eating”
- We’d say “I’m serious” but never “I’m being serious”
- We’d primarily use the ‘s genitive with animates (paralleling “whose” etc.) and use “of” with inanimates
- The “get passive” would be uncommon (as in “I got robbed”)
I also feel li...
Talos
I appreciate the detailed analysis, and I agree that we shouldn’t let what’s “traditional” grammar too strongly affect our judgements on how language can/should be used today.
It seems though, like you read the article as having a little more of a prescriptivist tone than I did? I read it more as a timeline of the acceptance of い-adjective + です, plus some additional context around how people tend to feel about its usage today, rather than any sort of damnation of its use.
It’s possible the quotes I chose above did a poor job of conveying my point - but my intended reading was really more like this:
Foreign writers of Japanese may sometimes wish to eschew the adjective+です construction to avoid sounding foreign or childish, [despite the fact that] it is widely accepted as proper Japanese.
In fact, I linked the article specifically because I wasn’t a fan of how strongly ...
nekoyama
I just read it as half-baked I think, just throwing around a few random quotes from dictionaries.
I agree on bunpro’s wording being a bit too strict, in particular the claim that it doesn’t appear in literature is just incorrect. And people use it in other writing too, in particular informal channels that are close to spoken language anyway like Twitter.
coffee126
Pretty late jumping in here, but if い-adjective plus です is considered incorrect, what is considered correct?
Fuga
Hey @coffee126 !
To make い-adjectives polite, people used ございます. For example, 楽しいです was 楽しゅうございます, and 美味しいです was 美味しゅうございます. However, because people thought this was too long and exaggerated for daily conversation, people started to use い-adjectives + です instead. Due to this, in 1952 the Japanese Language Council stated that い-adjective + です is acceptable. However, because this is a recent change, some people still consider it incorrect and think that it sounds unnatural.
I hope this answers your question!
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