日語 Japanese Ask Questions Thread2 質問

If you have a question about the language, ask it and fellow 4channers might see it and answer it for you.

Japanese - Ask questions thread
http://dis.4chan.org/read/lang/1174719097/l50

can someone tell me why 「行く」 is sometimes pronounced as ”いく”　and sometimes as "ゆく”?

also, what does ktkr mean? Is it 来たくれ?

There's also another abbreviation like that, but I can't remember what it is. Thanks anon.