对…来说 / 对于…来说【duì … lái shuō / duìyú … lái shuō】

对…来说 says who a judgment applies to: hard for whom, important to whom, expensive for whom. The person or group goes between 对 and 来说, and the frame opens the sentence.

The frame can also follow the subject.

对于…来说 means the same and sounds more formal.

Both halves stay

English "for me" is one word plus a pronoun. Chinese needs 对 in front and 来说 behind, and the frame goes before the comment, not after it.

• × 对我，中文很难 → 对我来说，中文很难
• × 我来说，中文很难 → 对我来说，中文很难
• × 中文很难对我来说 → 对我来说，中文很难

对我来说 or 我觉得

对我来说 says how something is for you: hard, important, far, cheap. A plain opinion about something takes 我觉得.