YOU SAID:

I went to the store to store the storage box thats was in storage at the store

INTO JAPANESE

店に行って、店で保管していた保管箱を保管していた。

BACK INTO ENGLISH

I went to the store and kept the storage box that I kept at the store.

INTO JAPANESE

店に行って保管していた保管箱を保管していた。

BACK INTO ENGLISH

I went to the store and kept the storage box that I kept.

INTO JAPANESE

店に行って保管していた保管箱を預かっていた。

BACK INTO ENGLISH

I went to the store and kept the storage box that I kept.