YOU SAID:
Hello would you like to go get lunch with me
INTO JAPANESE
こんにちはたい一緒に昼食を取りに行く
BACK INTO ENGLISH
Hi I go to lunch together
INTO JAPANESE
こんにちは私ランチに一緒に行く
BACK INTO ENGLISH
Hi I go to lunch together
That didn't even make that much sense in English.