Definition

1. Modal Verb:

   • Should / Ought to: Used to express advice, recommendation, or moral obligation.
   • Had better: Used to give stronger advice, often implying a negative consequence if not followed.

2. Verb:

   • To become / to turn into: Indicates a transformation or a result of development.
   • To succeed / to work out: Indicates a successful outcome or result.

3. Conjunction:

   • Therefore / so / and so: Used to introduce a result or consequence from a previously stated reason.

Usage Examples

• Modal Verb:

  • Bạn nên học bài chăm chỉ. (You should study diligently.)
  • Chúng ta nên đi ngay bây giờ. (We had better go now.)

• Verb:

  • Cậu bé ước mơ nên bác sĩ. (The boy dreams of becoming a doctor.)
  • Kế hoạch đó đã nên hay chưa? (Did that plan succeed or not?)

• Conjunction:

  • Trời mưa to nên chuyến picnic bị hoãn. (It rained heavily, so the picnic was postponed.)

Advanced Usage

• "nên chăng": Used to form a polite, rhetorical question meaning "should one?" or "is it advisable?".

  • Hỏi trực tiếp như vậy nên chăng? (Is it advisable to ask so directly?)

• "nên người": An idiomatic phrase meaning "to become a proper/respectable person".

  • Cha mẹ luôn mong con cái nên người. (Parents always wish for their children to become proper people.)

Variants and Related Words

• Nên danh (Verb Phrase): To become famous, to make a name for oneself.

  • Ông ấy đã nên danh trong làng hội họa. (He made a name for himself in the painting community.)

• Cho nên (Conjunction): Therefore, for that reason (a more formal synonym of "nên" as a conjunction).

  • Anh ấy không chuẩn bị, cho nên đã thất bại. (He did not prepare, therefore he failed.)

Synonyms

• Should / Ought to: khuyên, đáng lẽ.
• Become: trở thành, hóa ra.
• Therefore: vì thế, do đó, thành ra.

Related Idioms

• Có chí thì nên: Where there's a will, there's a way. (Literally: If one has determination, one will succeed.)

  • Đừng bỏ cuộc, có chí thì nên. (Don't give up, where there's a will, there's a way.)

• Nên vợ nên chồng: To become wife and husband; to get married.

  • Họ yêu nhau và đã nên vợ nên chồng. (They fell in love and got married.)

verb

1. ought tọ
   • anh nên đi chơi
     You ought to go to play. should, had beeter. 2- to become

noun

1. candle