Subject + 似乎 + Verb Phrase / Adjective
似乎 (sìhū) is a formal adverb meaning "it seems" or "apparently." It expresses uncertainty or a tentative observation, and is more literary than 好像. It is commonly found in written Chinese and formal speech.
他似乎对这个提议不太感兴趣。
tā sìhū duì zhège tíyì bú tài gǎn xìngqù.
He seems not very interested in this proposal.
天空似乎要下雨了,我们带把伞吧。
tiānkōng sìhū yào xiàyǔ le, wǒmen dài bǎ sǎn ba.
It looks like it's going to rain; let's bring an umbrella.
她似乎已经知道了这个消息。
tā sìhū yǐjīng zhīdào le zhège xiāoxi.
She seems to already know this news.