"वह शाम को खेलेगा।"

Translation: He will play in the evening.

[RayMathew1]

Why is को and not मे ?

[emrys29]

Both should be accepted.

[Joe986936]

Why isn’t “he will play tonight” accepted?

[another-dave]

"शम" = "evening" rather than "night" ("रात").

Also, "he will play in the evening" doesn't mean that it will happen today — it could be aby time in the future (e.g. "What time will he play on Wednesday?")

[Drew769603]

Because tonight is an English term that does not clearly indicate evening or night while hindi has words that make this distinction

[sravanthi964870]

I think this should be correct too?

[Krabiela]

How come sometimes the future tense has a u in the middle and sometimes it does not?