33 letters; hard and soft consonants
Masculine, feminine, neuter
Russian omits am/is/are
я, ты, он ...
The subject case; 'this is'
Plural endings and the spelling rule
Gender, number and case
Intonation, question words, не
1st and 2nd conjugation
Counting and gender
Six cases
Direct object and animacy
Possession, negation, 'of'
Used only after prepositions
The indirect object
Means and accompaniment
Imperfective vs perfective
Gender-marked past
Imperfective and perfective futures
Which case each preposition takes
Prefixes and aspect pairs
Unidirectional vs multidirectional; foot vs vehicle
The particle бы
Commands
The reflexive ending
Comparing things
The 1 / 2-4 / 5+ rule
Full case agreement
Adjective- and adverb-like verb forms
Flexible order, focus particles, register
