"Can you tell me / do you know how to ride a motorbike with a passenger on the back seat?"
Correction for post# 1.
He used to ride that scooter with two children on the back seat."
"Can you tell me how to ride a motorbike with a passenger on the back seat?"
Please check.
There's just one small mistake in the first one: it lacks an opening quotation mark. Congratulations!
Yes, I put that but the Electricity went off that's why it didn't post.
No. There was a power cut.
It's not natural in BrE.
How about in AmE?
What do you refer to it as in BrE?