YOU SAID:

They really need to begin working much harder.

INTO JAPANESE

彼らは本当に多くの困難に作業を開始する必要があります。

BACK INTO ENGLISH

They began to work a lot harder.

INTO JAPANESE

しばらくして彼らは歩きだした。

BACK INTO ENGLISH

They began to walk after a while.

INTO JAPANESE

しばらくして彼らは歩きだした。

BACK INTO ENGLISH

They began to walk after a while.