YOU SAID:

They had a man walking in front with a red flag.

INTO JAPANESE

彼らの前には赤旗を持った男が歩いていた。

BACK INTO ENGLISH

In front of them was a man walking with a red flag.

INTO JAPANESE

彼らの前を赤い旗を持って歩いている男がいた。

BACK INTO ENGLISH

There was a man walking in front of them with a red flag.

INTO JAPANESE

彼らの前を赤い旗を持って歩いている男がいた。

BACK INTO ENGLISH

There was a man walking in front of them with a red flag.