the boy speaks slowly

_______  говорит медленно

Spelling Rules

Here is how the Nominative Plural is formed.

TYPE Ending Example-а/-я -nouns ы/и ма́мы, зе́мли-ь -nouns, feminine и крова́тиmost consonant-ending masculines ы/и столы́, ма́льчики-о/-е -nouns а/я о́кна, моря́some consonant-ending masculines а/я доктора́, глаза́

(so, the plural «я́блоки» is actually an uncommon way of doing it)

There are some irregular plurals too.

Or maybe not. Sometimes Russian forces your choice of vowel to spell or pronounce after a certain letter.

The 7-letter rule: Whenever you make any form of a word, and you need to write И or Ы, check this: