YOU SAID:
I ate cake last night for a nonexistent person's birthday
INTO JAPANESE
昨夜、存在しない人の誕生日にケーキを食べました
BACK INTO ENGLISH
I ate a cake last night on the birthday of a non-existent person
INTO JAPANESE
昨夜、存在しない人の誕生日にケーキを食べました
BACK INTO ENGLISH
I ate a cake last night on the birthday of a non-existent person
Okay, I get it, you like Translation Party.