Non-defining Relative Clauses
1Công thức
noun, + who/which/whose/where/when + clause, (commas on both sides)2Giải thích
Mệnh đề quan hệ không xác định chỉ bổ sung thông tin thêm, được ngăn bằng dấu phẩy và câu vẫn đủ nghĩa nếu bỏ đi. Không dùng that và không lược bỏ đại từ quan hệ; which có thể thay thế cho cả mệnh đề trước.
A non-defining relative clause adds extra information that is not needed to identify the noun. It is separated by commas, and the sentence still makes sense without it.
3Khi nào dùng
- Adding extra information
- Commenting on a whole clause with which
4Quy tắc cần nhớ
- Commas are required
- That cannot be used
- The relative pronoun cannot be omitted
- Which can refer to the whole previous clause
5Ví dụ
My cousin, who works in Hanoi, is visiting next week.
The Mekong, which flows through several countries, is a vital river.
He passed his driving test, which surprised everyone.
6Lỗi thường gặp
- My brother, that lives in Perth, is a pilot. (who lives in Perth)
- The museum which we visited it was huge. (no pronoun repetition)
- We won the match which was a surprise. (use a comma: We won the match, which was a surprise.)