3 sentences

1. 要不是你，我不可能会站在这里。

   yào​bu​shì nǐ, wǒ bù kě​néng huì zhàn zài zhè​lǐ.

   I wouldn't be standing here if it wasn't for you.

   Source: OpenSubtitles

2. 他要不是回去取信，就不会错过那列火车了。

   tā yào​bu​shì huí qu qǔ xìn, jiù bù​huì cuò​guò nà liè huǒ​chē le.

   If he hadn't gone back for the letter, he wouldn't have missed the train.

   Source: UM-Corpus: Education

3. 要不是这位好心的向导，我可能就在山中迷路了。

   yào​bu​shì zhè​wèi hǎo​xīn de xiàng​dǎo, wǒ kě​néng jiù zài shān zhōng mí lù le.

   Had it not been for the kind guide, I might have got lost in the mountains.

   Source: UM-Corpus: Education