alt Hacker News> now let's try to apply the rules:
> hanas* + (i)masu = hanasimasu (wrong!)
I had to stare at this for a while to figure out why the author thought it was wrong. "si" is rendered as し on every IME keyboard I've ever used, but the author wants it to be written as "shi".
I don't think this article is really simpler than just learning the table and letting your pattern recognition neural wetware kick in and do its thing. Or better yet, go read some books. After a while, incorrectly conjugated verbs just look/sound wrong.
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Um... 話します is the correct conjugation for 話す, what am I missing here?
The Japanese phonological system doesn't allow a /s/ sound to occur before the vowel /i/, the consonant must undergo palatalization and become /ɕ/ (the IPA symbol for the Japanese sh-like sound). Because this is a regular sound rule, the native writing system doesn't have a way to distinguish the nonexistent */si/ sequence from the /ɕi/ sequence that actually occurs, and this is the syllable that hiragana し or katakana シ indicate.
In the Hepburn romanization system, which generally tries to be transparent to speakers of English or other European languages, し is romanized as _shi_, because this indicates to English speakers that the /s/ -> /ɕ/ sound change happens. In the Kunrei-siki romanization system, which tries to be more faithful to the distinctions made in the Japanese phonological system, し is romanized as _si_ to be consistent with the other possible syllables _sa_ _su_ _se_ _so_ that begin with the consonant /s/.
And yeah the fact that the article-writer hasn't internalized this sound change yet is a sign that their command of Japanese isn't all that good yet.
Many Japanese English speaksers instinctively pronounce si as shi. They say shistem for system, bashic for basic, shix for six, etc