Russian adverbs

Adv, conj, interj, prep stay the same.

Russian adverb - наречие answers the question Как? (how) and it is inflexible, does not have gender or number and never changes for cases. It modifies a verb, an adjective or another adverb.

Russian adjective - прилагательное denotes an attribute of an object and answers the questions Какой? Какая? Какое? Какие? (What kind of?) and agree with the noun that it points to in the sentence. Russian adjectives declines by changing the ending of the adjective to reflect its agreement with the noun, it takes masculine, feminine, neuter or plural endings depending on the noun or pronoun it modifies. For example, if a noun in the nominative case is masculine singular, the adjective that points to this noun should be as well in the nominative case and in masculine, singular.

Many Russian adverbs are formed from adjectives by replacing adjective endings with the invariable suffix -о:

and some with the suffix -е:

Some adverbs are formed with the prefix по- added to an adjective. Adjectival endings are replaced with the invariable suffix -и: русский - по-русски.

Some words are adverbs by nature. For example: сейчас (now).