What is "for" in Japanese?

[123kaleidoscope123_501118]

How would I say "for"?
Some examples:
I had cake FOR my birthday.
I made this FOR a game.
I waited FOR my friend.
I went out FOR some fresh air.

[community.japanese]

123kaleidoscope123

Konnichiwa.
It depends on the sentences.

I had cake FOR my birthday. 私の誕生日のためのケーキがあります。

I made this FOR a game.　ゲームのためにこれを作りました。

I waited FOR my friend.　友だちを待ちます。

I went out FOR some fresh air.　新鮮な空気を吸うために出かけました。

Yuki 　由紀
Team JapanesePod101.com