YOU SAID:
you mean long time no see
INTO JAPANESE
お久しぶりですね
BACK INTO ENGLISH
long time no see
INTO JAPANESE
長い間あっていませんでしたね
BACK INTO ENGLISH
I haven't seen you in a long time
INTO JAPANESE
私はあなたに長い間会っていない
BACK INTO ENGLISH
i haven't seen you in a long time
INTO JAPANESE
私は長い間あなたに会っていない
BACK INTO ENGLISH
i haven't seen you in a long time
That didn't even make that much sense in English.