Luke 9:40

And I besought thy disciples to cast him out; and they could not.
— Luke 9:40, King James Version

In other translations

World English Bible (WEB)

I begged your disciples to cast it out, and they couldn't."

American Standard Version (ASV)

And I besought thy disciples to cast it out; and they could not.

Young's Literal Translation (YLT)

and I besought thy disciples that they might cast it out, and they were not able.'