bởi vì

Tôi rất vui bởi vì tôi đã nhận được một món quà.

Definition

1. Conjunction:
   • Because, for the reason that: "bởi vì" is a subordinating conjunction used to introduce a clause that states the reason or cause for something mentioned in the main clause. It directly answers the question "why?".

Usage Instructions

• Position: "bởi vì" is placed at the beginning of the subordinate clause that explains the reason. The main clause (the result) can come before or after the "bởi vì" clause.
• Function: It creates a clear cause-and-effect relationship between two statements. It is more formal and emphatic than the simpler "vì".
• Punctuation: A comma is often used before "bởi vì" when it introduces the second clause.

Usage Examples

• Conjunction:
  • Tôi đến muộn bởi vì xe buýt bị hỏng. (I was late because the bus broke down.)
  • Bởi vì trời mưa to, chúng tôi đã hủy buổi dã ngoại. (Because it was raining heavily, we canceled the picnic.)
  • Anh ấy rất vui bởi vì anh ấy đã vượt qua kỳ thi. (He is very happy because he passed the exam.)

Advanced Usage

• Emphatic Reason: Using "bởi vì" instead of just "vì" can add slight emphasis or formality to the reason being given.
  • Tôi làm việc này không phải bởi vì tiền, mà bởi vì tôi yêu thích nó. (I do this not because of money, but because I love it.)
• In Formal Writing: "Bởi vì" is commonly used in written explanations, academic writing, and formal speeches to articulate clear causality.

Variants and Related Words

• Vì (conjunction): Because, for. This is the most common and versatile synonym for "bởi vì". It can often be used interchangeably, though "bởi vì" is sometimes more emphatic.
  • Tôi mệt vì tôi đã làm việc cả ngày. (I am tired because I worked all day.)
• Do (conjunction): Due to, because of. Often used in more formal or written contexts, similar to "bởi vì".
  • Anh ta thất bại do thiếu chuẩn bị. (He failed due to a lack of preparation.)
• Bởi (conjunction): Because, by. Can be used similarly to "bởi vì" but is less common in modern spoken Vietnamese; it often appears in literary or formal contexts.
  • Cây đổ bởi gió mạnh. (The tree fell because of the strong wind.)

Synonyms

• Vì: Because, for.
• Do: Due to, because of.
• Nguyên nhân là vì: The reason is that.

Related Phrases (Conjunctional Phrases)

• Chẳng qua là vì / bởi vì: It's simply because.
  • Anh ấy từ chối chẳng qua là vì anh ấy sợ. (He refused simply because he was afraid.)
• Bởi vì thế / vì thế: Because of that, therefore.
  • Cô ấy bị ốm. Bởi vì thế, cô ấy không thể đi học. (She is sick. Because of that, she cannot go to school.)

Related Idioms

• Có *bởi có vì*: There's a reason for everything; every effect has a cause. This idiom incorporates the components of "bởi vì" to emphasize that nothing happens without a reason.
  • Đừng trách nó, có bởi có vì nó mới làm thế. (Don't blame him; there's a reason he did that.)