为 (wéi) – become; act as, be regarded as

Pattern

• Verb（变 / 成 / 改 / 化）+ 为 + Noun
• 以 + A + 为 + B
• 被选 / 被评 + 为 + Noun

Usage

• A written verb (read wéi): (1) after change verbs like 变, 改, 化 to show the result “into …”; (2) meaning “act as, count as” in frames like 以 A 为 B, 被选为, 被评为.

Examples

1. 1

   压力也可以变为动力。

   Yālì yě kěyǐ biàn wéi dònglì.

   Pressure can also turn into motivation.

2. 2

   他被选为班长。

   Tā bèi xuǎn wéi bānzhǎng.

   He was elected class monitor.