Definition

1. Conjunction (conditional phrase):
   • If necessary: Used to introduce a conditional action or provision that may be undertaken only if a specific need arises. It implies that the action is optional and contingent upon circumstances.
   • If need be: A more formal or idiomatic equivalent, suggesting readiness to act should the situation require it.

Usage Examples

• Conjunction:
  • Hãy gọi cho tôi, nếu cần. (Call me, if necessary.)
  • Chúng tôi có thể cung cấp thêm tài liệu, nếu cần. (We can provide more documents, if need be.)
  • Nếu cần, bạn có thể hủy cuộc hẹn. (If necessary, you can cancel the appointment.)

Advanced Usage

• Used to soften instructions or offers, making them sound less obligatory and more accommodating.
  • Vui lòng nộp báo cáo trước thứ Sáu. Nếu cần, bạn có thể xin gia hạn. (Please submit the report before Friday. If necessary, you can request an extension.)

Variants and Related Words

• Trong trường hợp cần thiết: In case it is necessary. This is a more formal and explicit variant.
  • Trong trường hợp cần thiết, hãy sử dụng lối thoát hiểm. (In case it is necessary, use the emergency exit.)

Synonyms

• If required: Used in formal or official contexts.
• Should the need arise: A more elaborate conditional phrase.
• If so required: Formal synonym emphasizing contingency.

Related Phrases and Idioms

• Nếu có thể: If possible. Often used in parallel with "nếu cần" to list different conditions.
  • Hãy phản hồi sớm. Nếu có thể, hôm nay. Nếu cần, chúng ta sẽ họp lại. (Please respond soon. If possible, today. If necessary, we will meet again.)

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