mặc cho

Mặc cho is highly flexible and can attach to Nouns/Noun Phrases or Full Clauses. Note that when involving a pronoun, it requires an accompanying action or clause (e.g., mặc cho anh ta ngăn cản); using a pronoun alone (e.g., mặc cho anh ta) is unnatural, and native speakers would use mặc kệ instead. It is placed at the beginning of the concessive phrase. Note that the word cho is sometimes optional, leaving just mặc. When used as a conjunction at the beginning of a sentence, a comma is highly recommended to separate the concessive phrase from the main clause.

1. Triple Function:
It is important to distinguish between its three primary uses to avoid translation confusion:

• As a Conjunction/Preposition: Meaning 'despite' or 'regardless of', indicating a factor that is ignored. The noun phrase following mặc cho is almost always an adverse condition, hardship, or negative external force (e.g., mưa gió, lời đàm tiếu, khó khăn). For positive static noun phrases like sự giúp đỡ, native speakers prefer bất chấp or mặc dù có. In highly colloquial speech, mặc kệ frequently replaces the conjunction mặc cho (e.g., Mặc kệ trời mưa, tôi vẫn đi), though mặc kệ carries a much stronger, more active tone of dismissiveness, apathy, or defiance compared to the more formal and less aggressive mặc cho.
• As an Active Verb Phrase (To let/leave alone): Meaning 'to let someone do something' or 'to leave someone to their own devices' (e.g., mặc cho nó khóc - let him cry). Formula: Mặc (cho) + [Object] + [Verb/Action]. In this structure, the subject of mặc is the person doing the ignoring or allowing, while the Object is the one performing the subsequent action. In standard declarative sentences, the subject is explicitly stated (e.g., Cô ấy mặc cho con khóc - She lets her child cry). However, when used as an imperative or command in everyday speech (e.g., 'Just let him cry!' or 'Leave him alone!'), the subject is naturally omitted. Here, cho functions as a particle meaning 'to let/allow' (similar to để cho), whereas in the conjunction form, mặc cho operates as a single fused unit. If the object is omitted from context, the entire phrase is usually shortened to just mặc or replaced by phrases like mặc kệ. In spoken Vietnamese, native speakers frequently pair it with để or cứ (e.g., để mặc cho nó khóc or cứ mặc cho nó khóc) to sound more natural.
• As a Literal Action (To dress someone): Meaning 'to dress someone' or 'to put clothes on someone'. Here, mặc means 'to wear/put on clothes' and cho is the benefactive particle meaning 'for' (see cho or Verb + cho + Person). For example: Mẹ mặc cho bé chiếc áo ấm (The mother puts a warm coat on the baby).

2. Structural Requirement (Conjunction):
Syntactically, the main clause almost always requires a correlative adverb—usually vẫn (still) or cứ (continue to)—placed before the main verb to complete the logical structure. In formal writing, adding nhưng to the main clause is considered a redundancy. The correct formal pairing relies simply on vẫn or cứ without nhưng, although nhưng is sometimes heard in colloquial speech.

• Mặc (cho) + [Obstacle / Clause], [Subject] + vẫn / cứ + [Action]

Alternatively, the clauses can be reversed (note that no comma is used before mặc cho in this case):

• [Subject] + vẫn / cứ + [Action] + mặc (cho) + [Obstacle / Clause]

3. Nuance and Comparisons:

• Vs. Mặc dù: mặc dù ... nhưng ... is a neutral statement of contrasting facts. Mặc cho implies a deliberate attitude of ignoring or defying the obstacle. Crucially, while they are interchangeable as conjunctions, mặc dù CANNOT be used as an active verb phrase (e.g., you cannot say Mặc dù nó khóc to mean 'Let him cry').
• Vs. Bất chấp: bất chấp is stronger and more aggressive, often implying taking a severe risk (e.g., defying the law or extreme danger). Mặc cho is softer; it can imply passive indifference.
• Vs. Cho dù: cho dù ... cũng ... is used for hypothetical or extreme conditions (even if), whereas mặc cho is used for actual, existing obstacles.

4. Defying Internal States:
Native speakers frequently use mặc cho with internal states (e.g., mặc cho mệt mỏi, mặc cho ốm đau) to emphasize a strong, deliberate defiance of one's own physical limits. For example, Mặc cho ốm đau, tôi vẫn đi làm (Despite sickness, I still go to work) highlights pushing through the illness.

5. With Indefinite Pronouns and Question Words:
A highly frequent structural use of mặc cho involves indefinite pronouns or question words (such as ai, người ta, or gì) to mean 'no matter who' or 'no matter what'. For example, mặc cho ai nói gì (no matter what anyone says) or mặc cho người ta dèm pha (no matter how people gossip).

6. Common Collocations:
Mặc cho is heavily used in fixed phrases regarding nature or fate, such as mặc cho mưa gió (despite the wind and rain) or mặc cho số phận (left to fate). Another highly common collocation is phó mặc cho (to leave something entirely to someone else or to fate), which stems directly from the active verb phrase definition.