Preposition

[Will17]

Hello!

-Is the use of "for" correct, here?

"good luck for this afternoon"?

-Is the use of "for" necessary here?

"Wait for 3 weeks"


Thank you
W

[riquecohen]

Hello!

-Is the use of "for" correct, here?

"good luck for this afternoon"? Omit for.

-Is the use of "for" necessary here?

"Wait for 3 weeks" Your choice. I would omit it.
Thank you
W

Henry

[5jj]

"good luck for this afternoon"?

-Is the use of "for" necessary here?

Not necessary, as riquecohen suggests, but it is possible to retain it.

5jj