YOU SAID:

I need to go to the library to find a book on sad poems

INTO JAPANESE

悲しい詩の本を探すために図書館に行く必要があります

BACK INTO ENGLISH

Need to go to the library to find a sad poetry book

INTO JAPANESE

悲しい詩の本を見つけるために図書館に行く必要があります

BACK INTO ENGLISH

You have to go to the library to find a sad poetry book

INTO JAPANESE

あなたは悲しい詩の本を見つけるために図書館に行かなければなりません

BACK INTO ENGLISH

You have to go to the library to find a sad poetry book