4 sentences

1. 她因考试不及格而感到羞愧。

   tā yīn kǎo​shì bù​jí​gé ér gǎn dào xiū​kuì.

   She was ashamed of having failed in the examination.

   Source: UM-Corpus: Spoken

2. 我要不及格了。

   wǒ yào bù​jí​gé le.

   I'm going to fail.

   Source: OpenSubtitles

3. 你若考试不及格，只能怪你自己。

   nǐ ruò kǎo shì bù​jí​gé, zhǐ​néng guài nǐ zì​jǐ.

   If you fail the exam you’ll only have yourself to blame.

   Source: CCMatrix

4. 他没有勇气告诉母亲他考试不及格。

   tā méi​yǒu yǒng​qì gào​sù mǔ​qīn tā kǎo shì bù​jí​gé.

   He didn't have the courage to tell his mother that he had failed in the exam.

   Source: UM-Corpus: Spoken