"Manden bruger korn til at lave brød."

Translation: The man uses grain to make bread.

[Qermit]

Could anyone please explain the subtle difference between the cases when 'til at' and 'for at' are used?

[Luke_5.1991]

Is it just me, or does "korn" sound especially funny in this sentence? Listen to the audio again.

[KajGuy]

I listened to it a dozen times and still chuckled each time.

[Marina802755]

I typed grains in sted of grain. It's wrong. But it seems strange to me to use grain, in sted of using grains