YOU SAID:

There was a girl in the costume, I forgot her name. Her name is Jenny.

INTO JAPANESE

衣装を着た女の子がいましたが、名前は忘れました。彼女の名前はジェニーです。

BACK INTO ENGLISH

There was a girl wearing a costume, but I forget her name. Her name is Jenny.

INTO JAPANESE

着ぐるみを着た女の子がいましたが、名前は忘れてしまいました。彼女の名前はジェニーです。

BACK INTO ENGLISH

There was a girl wearing a costume, but I forget her name. Her name is Jenny.