Definition
How do I know (you're telling the truth)?: What can prove to me that (you're telling the truth)?
- "Harold : How do I know you're not a hallucination?"
- "How do I know it is really you?"
Still unsure of the best way to use 'How do i know'? Improve your English thanks to our online English lessons. We offer a free test as well as a free level assessment!
What our users say:
Test your English with Gymglish today and get a free level assessment
Absolutely free - no strings attached.