Breakdown of ลูกค้า สอบถาม ว่า วันนี้ ใช้ คูปอง ได้ หรือเปล่า ครับ
ครับ
polite particle (male)
วันนี้
today
ใช้
to use
ได้
can
ลูกค้า
customer
ว่า
that (conjunction)
หรือเปล่า
or not
สอบถาม
to inquire
คูปอง
coupon
Questions & Answers about ลูกค้า สอบถาม ว่า วันนี้ ใช้ คูปอง ได้ หรือเปล่า ครับ
How do ว่า and หรือเปล่า work together to mean 'whether' in this sentence?
The word ว่า acts as a linking word (complementizer) connecting the main verb สอบถาม (to inquire) to the second part of the sentence. On its own, ว่า usually just means 'that' (as in 'he said that...'). However, because the embedded clause ends with the question word หรือเปล่า (or not), the combination automatically translates to 'whether [X] or not'.
Why is สอบถาม used here instead of the basic word ถาม for 'to ask'?
สอบถาม is a more formal, polite, and professional version of ถาม. It is the standard word used for 'inquiring' or 'requesting information' in business, retail, or official situations. Since this sentence involves a customer (ลูกค้า) asking a business a question, this formal register is the most natural choice.
The English translation uses the passive voice ('whether the coupon can be used'), but the Thai seems active. Where is the subject?
Thai rarely uses the passive voice and frequently drops pronoun subjects when they can be guessed from context. The embedded clause วันนี้ใช้คูปองได้หรือเปล่า is actually in the active voice and literally translates to 'today [can I/can someone] use [the] coupon or not?'. Because it's obvious the customer wants to use it, the subject is simply left out.
As a quick refresher, why is ได้ placed after คูปอง rather than before the verb ใช้?
When ได้ indicates permission, possibility, or ability (meaning 'can'), it must go after the main verb and its object. The correct order is verb (ใช้) + object (คูปอง) + ได้. If you put ได้ before the verb, it changes the meaning to indicate a past action or having had the opportunity to do something.
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