What is the difference between "in a while" and "for a while".
Hello!
What is the difference between "in a while" and "for a while"?

I can’t talk to you at the moment. Ring me back ____a while.

Could you give me more examples please?

Question

What is the difference between "in a while" and "for a while".
Hello!
What is the difference between "in a while" and "for a while"?

I can’t talk to you  at  the moment. Ring me back  ____a while.

Could you give me more examples please?

Answer

"in a while" would mean after a short period of time
"for a while" would mean for a short period of time

Example: "In a while I can talk to you for a while, but I only have 20 minutes this morning."

Answer

Ill give an example sentence:
"I haven't done this for a while now..."
For a while, for me, gives feeling that the action is going to continue its existence even though it wasn't done a lot lately. I'm thinking it's a small nuance which you should not pay much attention to.
In a while expresses something done after the specified time. 
"I'll get used to this in a while, I guess" as the other person specified

Nuances are a lot in Ingrish I feel like xd

Đừng bỏ lỡ cơ hội học ngoại ngữ ngay tại nhà. Hãy xem danh sách các gia sư ngôn ngữ giàu kinh nghiệm của chúng tôi và đăng ký buổi học đầu tiên ngay hôm nay!