At the same time with 一边…一边…

Structure 一边 + action 1 + 一边 + action 2

一边…一边… (yībiān… yībiān…) marks two actions done AT THE SAME TIME by the same subject: 他一边走一边唱 = "he walks and sings at the same time". Each 一边 goes before a verb. In fast speech it can be reduced. It’s for simultaneous actions, not alternating ones.

Examples

他tā一yī边biān走zǒu一yī边biān唱chàng。
He walks while singing.
我wǒ喜xǐ欢huan一yī边biān吃chī饭fàn一yī边biān看kàn电diàn视shì。
I like to eat while watching TV.
别bié一yī边biān开kāi车chē一yī边biān打dǎ电diàn话huà。
Don’t talk on the phone while driving.

Levels are indicative: they follow the standard Chinese Grammar Wiki (AllSet Learning) progression, not an official HSK 3.0 mapping. We never assign levels by eye.

This point and the other 370, with audio on every example, inside Wanyu.