The part of the sentence "learn something useful" is correct and usable in written English.
You could use it in many contexts. For example, "I hope the course will help me learn something useful that I can apply in my everyday life."
And he hoped doctors might learn something useful.
Occasionally, I actually learn something useful, as in the Microsoft definition of "prat" - the buttocks.
But can we actually learn something useful about the modern world by scrutinizing its rubbish?
Members don't expect to learn something useful themselves, so usually they don't.
Viewing figures for these building shows are consistently high, and presumably the audience tunes in hoping to learn something useful.
We Americans overinvest in firepower to defeat extremism and underinvest in development, and so we could learn something useful from Roshaneh.
School director Al Najjar says all sessions offered within the AFS are participatory and allow adolescents to engage fully: "We use practical examples, role playing and games so that adolescents can see that they are learning something useful, which they can use in their daily lives while having fun in the process".
Etiennette Mukwanga says she is proud to be learning something useful, despite all the hardships.
And when the Fed revises its view of the risks in the economy, investors may think they've learned something useful.
If in the end the answer is negative, the world would at least have learned something useful: that these groups' extreme claims are not just rhetorical adornments.
Of the millions who tuned in to Mr Weiner's televised mea culpa, surely some of them failed to locate the remote before they accidentally learned something useful.
