4 sentences

1. 我以前给他换过尿布。

   wǒ yǐ​qián gěi tā huàn guo niào​bù.

   I used to change his diapers.

   Source: OpenSubtitles

2. 妈妈正在给宝宝换尿布。

   mā​ma zhèng​zài gěi bǎo​bao huàn niào​bù.

   Mom is changing the baby's diaper.

   Source: Dong Chinese Dictionary

3. 我才不穿尿布呢。

   wǒ cái bù chuān niào​bù ne.

   I'm not wearing diapers.

   Source: OpenSubtitles

4. 由于换尿布不及时，婴儿的皮肤被尿淹了。

   yóu​yú huàn niào​bù bù jí​shí, yīng'ér de pí​fū bèi niào yān le.

   Because the diaper wasn't changed in time, the baby developed a rash from the urine.

   Source: Dong Chinese Dictionary