Word: 保證 (bǎozhèng) to pledge

他保證不再撒謊。

Tā bǎozhèng búzài sāhuǎng.

He promised not to tell lies again.

他保證過會來卻沒有來。

Tā bǎozhèngguo huì lái què méiyǒu lái.

He promised to come, but he didn't come.

他向我保證會還錢。

Tā xiàng wǒ bǎozhèng huì huán qián.

He promised me to pay back the money.

我們保證不會再做了。

Wǒmen bǎozhèng búhuì zài zuòle.

We promise you that we'll never do it again.

我們保證我們不會再做了。

Wǒmen bǎozhèng wǒmen búhuì zài zuòle.

We promise you that we'll never do it again.

我保證它不會再發生。

Wǒ bǎozhèng tā búhuì zài fāshēng.

I promise it won't happen again.

我保證我會做的。

Wǒ bǎozhèng wǒ huì zuò de.

I promise that I will do it.

我保證我會把你送進牢里。

Wǒ bǎozhèng wǒ huì bǎ nǐ sòng jìn láo lǐ.

I promise that I will send you to prison.

我保證我會來。

Wǒ bǎozhèng wǒ huì lái.

I promise that I'll come.

我保證火車會準時來。

Wǒ bǎozhèng huǒchē huì zhǔnshí lái.

The train will arrive on time without fail.

我向你保證。

Wǒ xiàng nǐ bǎozhèng.

I give you my word.

我和你保證。

Wǒ hé nǐ bǎozhèng.

I gave you my word.

是的，我們保證。

Shì de, wǒmen bǎozhèng.

Yes, we promise.