Learn Farsi: پسر شجاع روی سرسره می‌دوید.

We take the prefix می (mi-), add the past stem of the verb دویدن (davidan), which is دوید (david), and attach the personal ending. Since the subject is third-person singular, there is no ending. This gives us می‌دوید.

Where is the word for "the" in پسر شجاع (the brave boy)?

Farsi does not have a separate word for "the". Nouns are often assumed to be specific based on the context. You just say پسر شجاع (pesar-e shojâ) with an invisible ezafe vowel sound connecting the noun and the adjective.

Does the preposition روی (on) connect to سرسره (slide) with an ezafe?

Yes! Just like adjectives connect to nouns, many prepositions like روی (ruy) use an ezafe to connect to the noun that follows. You pronounce the connection as ruy-e sarsare.

What is the infinitive of the verb used for می‌دوید?

The infinitive is دویدن (davidan), meaning to run. By dropping the final ن (n), you find the past stem دوید (david) that forms the core of this past continuous verb.