Learn Hardcore Russian: Мой друг говорит тихо.

In Russian, possessive adjectives like мой (“my”) must agree with the noun they modify in gender, number, and case. Since друг (“friend”) is masculine, singular, and in the nominative case (because it’s the subject of the sentence), мой is the correct form to use here.

What is the role of the verb говорит in this sentence, and what form is it?

говорит is the third person singular present tense form of the verb говорить (“to speak”). It indicates that the subject (мой друг) is performing the action of speaking. Russian verbs must agree with their subjects, and here говорит correctly corresponds with друг.

How does тихо function in this sentence, and why is it not inflected?

тихо is an adverb that means “quietly.” In Russian, adverbs modify verbs by describing the manner in which an action is performed, and they remain unchanged (uninflected). Here, тихо tells us how the friend speaks, modifying говорит.

Why is тихо used instead of the adjective тихий in this context?

Adjectives describe nouns, while adverbs describe verbs, adjectives, or other adverbs. Since the sentence aims to describe the manner of speaking, an adverb is required. тихо functions as an adverb (“quietly”), whereas тихий is an adjective (“quiet”) and would be grammatically incorrect if used to modify the verb .