YOU SAID:
Someone stole my megaphone.
INTO JAPANESE
誰かは盗んだ私のメガホンです。
BACK INTO ENGLISH
Someone is stealing my megaphone.
INTO JAPANESE
誰かは私のメガホンを盗んでいます。
BACK INTO ENGLISH
Someone is stealing my megaphone.
That didn't even make that much sense in English.