YOU SAID:
hello person I don't know
INTO JAPANESE
こんにちは人私は知りません
BACK INTO ENGLISH
Hi people I do not know
INTO JAPANESE
こんにちは私は知らない人
BACK INTO ENGLISH
Hello I do not know people
INTO JAPANESE
こんにちは私は人を知らない
BACK INTO ENGLISH
Hello I do not know the people
INTO JAPANESE
こんにちは私は人々を知らない
BACK INTO ENGLISH
Hello I do not know the people
You've done this before, haven't you.