Subject + (不)怪 + Person + Verb Phrase
怪 (guài) means "to blame" when used as a verb, indicating that someone is held responsible for a mistake or wrongdoing. It is often used in negative constructions like 不怪你 (don't blame you). For example, 我不怪你不知道 means "I don't blame you for not knowing."
这件事不怪你,是我自己没说清楚。
Zhè jiàn shì bù guài nǐ, shì wǒ zìjǐ méi shuō qīngchu.
This isn't your fault; I didn't explain it clearly myself.
别怪他迟到,路上堵车很严重。
Bié guài tā chídào, lùshang dǔchē hěn yánzhòng.
Don't blame him for being late; the traffic jam was really bad.
你要怪就怪天气吧,谁知道会突然下雨。
Nǐ yào guài jiù guài tiānqì ba, shéi zhīdào huì tūrán xiàyǔ.
If you want to blame someone, blame the weather — who knew it would suddenly rain?