YOU SAID:

there is a man in the building over there

INTO JAPANESE

あそこの建物に男がいる

BACK INTO ENGLISH

There's a man in that building over there.

INTO JAPANESE

あそこの建物に男がいる。

BACK INTO ENGLISH

There is a man in the building over there.

INTO JAPANESE

あそこの建物に男がいます。

BACK INTO ENGLISH

There is a man in the building over there.