YOU SAID:

I have hamburger in my pants.

INTO JAPANESE

私のズボンにハンバーガーがあります。

BACK INTO ENGLISH

Burger in my pants.

INTO JAPANESE

私のズボンでハンバーガー。

BACK INTO ENGLISH

It's a burger in my pants.

INTO JAPANESE

私のズボンのバーガーです。

BACK INTO ENGLISH

It is in my pants.

INTO JAPANESE

それは私のズボンです。

BACK INTO ENGLISH

It is in my pants.