不是

búshì

phrase #4,942

Meanings

HSK 1

这不是我的书。

Zhè bú shì wǒ de shū.

This is not my book.

HSK 1

他说的不是真的。

Tā shuō de búshì zhēnde.

What he said isn't true.

HSK 1

这都是我的不是。

Zhè dōu shì wǒ de búshì.

This is all my fault.

grammar

不是 can also be used as a noun meaning 'fault/blame': 这是你的不是 (This is your fault). The pattern 不是...就是... means 'if not... then...'.

mistakes

The tone of 不 changes before a 4th-tone syllable: 不 + 是 = busi (2nd tone + 4th tone).

不 bù

是 shì