Is this how you say "really long time no see" in Japanese? I already know that "long time, no see" is ”久しぶり” but if I want to express the phrase not only more formal, but to emphasize that it has been a really really long time, can I say something like this: Long long time no see ↓ ごぶさたしていました My Japanese friend taught me this and I thought I would verify its correctness on here?