Why is は used at the end of こんにちは? Is the last letter the
particle は, or is there a different explanation? I suppose you
could equally ask "Why is こんにちは pronounced 'konnichiwa'?" - I
guess gaikokujin tend to be more spoken-language-centric,
whereas nihonjin tend to be more written-language-centric. Which
is correct: こんばんわ or こんばんは?-こんばんわ-or-こんばんは mentions konnichiwa,
but the question is interpreted more as "When should I use こんばんわ
and when should I use こんばんは?"