typing はinstead of わ
When do we type はinstead of わ? for example in こんにちは！pronounce as konnichiwa.

Question

typing はinstead of わ
When do we type  はinstead of わ? for example in こんにちは！pronounce as konnichiwa.

Answer

"は" is written in the cases below.
1. particle "wa"
わたしはwatashiwa←わたし＋は
※The sound of "は" changed other than initial. But the letter didn't.［pa］→［fa］→［wa］
※"へ" and "を" are the same. 
"へ"［pe］→［fe］→［we］→［ye］→［e］ 　（わたしは）へ［he］やへ［e］ ／にいく。I go to my room.
"を"［wo］→［o］　（わたしは）お［o］んがくを［o］きく。I listen to a music.
2.word including particle "wa"
こんにちはHello←こんにちtoday＋はis
これはこれはOh←これthis＋は×2

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