YOU SAID:
hello i am in science class
INTO JAPANESE
こんにちは私は科学のクラスです
BACK INTO ENGLISH
Hi I am in a science class
INTO JAPANESE
こんにちは私は科学のクラスにいます
BACK INTO ENGLISH
Hi I'm in a science class
INTO JAPANESE
こんにちは私は科学のクラスにいます
BACK INTO ENGLISH
Hi I'm in a science class
That didn't even make that much sense in English.