Meaning of fā shì:
fā shì
发誓
Verb
to vow; to pledge; to swear
Tā xiàng tā fāshì, yǒngyuǎn bú huì líkāi.
他向她发誓，永远不会离开。
He vowed to her that he would never leave.
Tā xiàng wǒ fāshì bù huì zài sāhuǎng.
他向我发誓不会再撒谎。
He pledged to me that he wouldn't lie again.
Tā xiàng tā de péngyǒu fāshì, yǒngyuǎn bù huì sāhuǎng.
他向他的朋友发誓，永远不会撒谎。
He swore to his friend that he would never lie.
