YOU SAID:

when i enter an engineering class i begin to cry

INTO JAPANESE

工学部の授業に入ると泣き始める

BACK INTO ENGLISH

I start crying when I enter my engineering class.

INTO JAPANESE

工学部のクラスに入ると泣き始めます。

BACK INTO ENGLISH

When I walk into my engineering class, I start crying.

INTO JAPANESE

工学部のクラスに入ると、泣き始めます。

BACK INTO ENGLISH

When I walk into my engineering class, I start crying.