Bn 10 Alyyn Fwrs Dha Rayz Awf Hyks Thmyl [Secure]

That yields: — ungrammatical.

— still not clear.

Original English: — nonsense. Maybe the intended English: "Bent on all in force, the race of hikes the mile" — still poor. bn 10 alyyn fwrs dha rayz awf hyks thmyl

"10" = ten (literal), not "th".

But that is not standard English.

String:

"alyyn" = all in (a-ll-i-n) but doubled y = just emphasis. Then: That yields: — ungrammatical

Could be a badly typed or transcribed exercise from English: