Essential pattern Grammar reference

S1 + cấm + S2/ S + không nên + V

A2 Common Both dialects 104 views

Modal — prohibition / disapproval scale.

Definition

What it means

English

Two prohibition frames placed on a single spectrum of social weight. S + không nên + V is the gentle, advisory end ('shouldn't' — friendly counsel between equals), while S1 + cấm + S2 + V is the strong, authoritative end ('forbid' — a parent telling a child, a rule on a sign, an institution stating policy). Between them sits S + không được + V ('not allowed' — a firm rule without the parental sting of cấm). The whole point of presenting these together is to show that prohibition in Vietnamese isn't a single word — it's a ladder, and choosing the wrong rung makes a sentence either limp or aggressive. Drilling these in pairs early teaches social calibration that pays off for years.

Tiếng Việt

Thể hiện sự không phép. Mức độ “ngăn cản" tăng dần từ " không nên" đến "cấm"

Examples

In real Southern Vietnamese

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  1. Ba mẹ cấm các con hút thuốc lá!

    My parent to forbid the children shouldn't smoke!

  2. Các con con không nên hút thuốc lá!

    The children shouldn't smoke!

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Usage notes
Two prohibition frames ranked by strength: 'S + không nên + V' (should not — advisory) and 'S1 + cấm + S2 + V' (forbids — strong). 'Không nên hút thuốc' = shouldn't smoke. 'Ba mẹ cấm con hút thuốc' = parents forbid.

Also in "Imperatives & Polite Requests"

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