起初 + Clause
The adverb 起初 (qǐchū) means "at first," "initially," or "in the beginning." It is used to describe a situation or state that existed at an earlier time, often implying that things changed later. It typically appears at the beginning of a clause.
起初我不太习惯这里的天气。
Qǐchū wǒ bú tài xíguàn zhèlǐ de tiānqì.
At first, I wasn't used to the weather here.
起初他不愿意去,后来改主意了。
Qǐchū tā bù yuànyì qù, hòulái gǎi zhǔyì le.
At first he didn't want to go, but later he changed his mind.
起初大家都不相信,结果真的成功了。
Qǐchū dàjiā dōu bù xiāngxìn, jiéguǒ zhēn de chénggōng le.
At first nobody believed it, but in the end it really succeeded.