YOU SAID:
地下室にはたくさんの友達がいます
INTO JAPANESE
地下室にはたくさんの友達がいます
BACK INTO ENGLISH
I have many friends in the basement
INTO JAPANESE
地下にはたくさんの友達がいる
BACK INTO ENGLISH
I have many friends underground
INTO JAPANESE
地下にたくさんの友達がいる
BACK INTO ENGLISH
I have many friends underground
You've done this before, haven't you.