ผม ไม่ รู้ ครับ

Breakdown of ผม ไม่ รู้ ครับ

ครับ
polite particle (male)
ผม
I (male)
ไม่
not
รู้
to know

Questions & Answers about ผม ไม่ รู้ ครับ

Where is the word for 'do' in this sentence?
Thai doesn't use helper verbs like 'do' or 'does' for negation. To make a negative sentence, you simply put the word ไม่ (not) directly in front of the main verb. So, 'do not know' is just ไม่ followed by รู้ (to know).
Would a female speaker say this exact sentence?
No. Both ผม (I) and ครับ (the polite ending particle) are used specifically by male speakers. A female speaker would change this to ฉันไม่รู้ค่ะ using ฉัน for 'I' and ค่ะ for politeness.
Can I use ไม่รู้ to say I do not know a person?
No, รู้ is strictly used for knowing facts or information. If you want to say you do not know a person, you must use a different verb: รู้จัก.

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