YOU SAID:

I wish i could eat a sandwich

INTO JAPANESE

サンドイッチが食べたらいいのに

BACK INTO ENGLISH

I wish I could eat a sandwich.

INTO JAPANESE

サンドイッチが食べたらいいのになあ。

BACK INTO ENGLISH

I wish I had eaten a sandwich.

INTO JAPANESE

サンドイッチを食べっておけばよかったのに。

BACK INTO ENGLISH

You should have eaten a sandwich.

INTO JAPANESE

サンドイッチを食べるべきだったのに。

BACK INTO ENGLISH

You should have eaten a sandwich.