Grammar Info
N5 Lesson 1: 2/12

です
To be, Is

Unlike だ, です is often used with both い-Adjectives and な-Adjectives

Structure
Noun + です
Adjective + です
Details
Part of Speech Auxiliary Verb
Word Type Dependent Word
Register Polite
品詞 助動詞
単語の種類 付属語
使用域 敬語
Information
Similarly to , 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 .
です connects to words in exactly the same way as だ, but is also regularly seen attached to the end of い-Adjectives.
  • 大学生(だいがくせい)です
    I am a college student.
  • 店(みせ)です
    It is a store.
  • 綺麗(きれい)です
    It is beautiful.
  • 面白(おもしろ)いです
    It is funny.
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.
  • 暑(あつ)いです
    It is hot.
The above example should not be used in formal writing.
Slow Male
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あなたです
It is you.
[polite]
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ペンです
It is a pen.
[polite]
Play  
さくらです
(I) am Sakura.
[polite]
Play  
Books
Genki I 2nd Edition
Page 42
みんなの日本語 I
Page 14 [CH 1]
Tae Kim's Japanese Grammar Guide
Page 88