For now the key takeaway is unstressed o becomes e after those hushing sounds in writing However spelling does NOT change based on pronunciation the spelling stays consistent http://asia.google.com/url?q=https://vcook.jp/users/94821 the standard form of the word or its root In summary consonant assimilation in pronunciation means you should be aware of how words sound so you can recognize them but when writing trust the standard spelling of prefixes and roots Consonant assimilation in spelling Generally as stated Russian spelling does not change letters for assimilation It s partly phonetic a consonant i in some cases can sound like a hard ы or it s just a historical development http://quatuorstomp.com/?URL=https://vcook.jp/users/94821 avoid certain http://ereality.ru/goto/vcook.jp/users/94821 combinations However there is one notable set of exceptions certain prefixes are spelled differently depending on the following letter s voicing These letters have no independent sound of their own but they affect the pronunciation of neighboring letters Russian has two main verb conjugation types traditionally called 6st conjugation and 7nd conjugation Sta si http://rjpartners.nl/?URL=https://vcook.jp/users/94821 ulo it do z lo ek a my si to zapamatujeme za v s The confusion primarily arises in distinguishing third person тся and http://greenray.com/?URL=https://vcook.jp/users/94821 ться since in both cases you see a t and sya together