过于 + Adjective/Verb
过于 (guòyú) is an adverb meaning "too," "excessively," or "overly." It is placed before an adjective or verb to indicate that something has gone beyond what is appropriate or desirable. It is more formal than 太 (tài) and often carries a negative connotation, implying that the excess is problematic.
他对自己的要求过于严格了。
tā duì zìjǐ de yāoqiú guòyú yángé le.
He is too strict with himself.
这件事你不要过于担心,会解决的。
zhè jiàn shì nǐ bú yào guòyú dānxīn, huì jiějué de.
Don't worry too much about this matter; it will be resolved.
她觉得这个方案过于复杂,不太实际。
tā juéde zhège fāng'àn guòyú fùzá, bú tài shíjì.
She thinks this plan is overly complicated and not very practical.