Personal pronouns in every case
я (I), ты (you), он (he) and the rest change form in each case, just as nouns do. Pronouns guide →
My, your, our
мой (my), твой (your), наш (our) and ваш (your, polite or plural) agree with the thing owned, not the owner. его́ (his), её (her) and их (their) never change. Pronouns guide →
This and that
э́тот (this) and тот (that) agree like adjectives. In “This is…” sentences, use the fixed word э́то. Pronouns guide →
Adjective endings
Long adjectives sit before the noun and take its gender, number and case. Words ending in -ий such as си́ний (dark blue) take soft endings. Adjectives guide →
Short adjectives
Some adjectives have a short form used after the subject, with no verb “is”. A few, like рад (glad) and до́лжен (must), only exist in the short form. Short adjectives guide →