Breakdown of Мой брат часто гулял с ним в парке.
брат
brother
парк
park
он
he / it (for a masculine noun) / it (for a neuter noun)
мой
my (мой, моя, моё) / mine
часто
often
в
in / to (direction)
гулять
to walk
с
with (also со)
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