YOU SAID:

The sea shells she sells are sea shells, I'm sure.

INTO JAPANESE

彼女が売っている貝殻は、きっと海の貝、です。

BACK INTO ENGLISH

Seashells she sells are surely sea shells,.

INTO JAPANESE

彼女が売っている貝殻は、確かに海の貝殻です。

BACK INTO ENGLISH

She sells seashells is sure sea shells.

INTO JAPANESE

彼女は貝殻を売っているは必ず海の貝。

BACK INTO ENGLISH

She sells seashells is sure sea shells.