Breakdown of Обычно я заодно захожу к нему.
он
he / it (for a masculine noun) / it (for a neuter noun)
я
I
обычно
usually
к
towards, to
Questions & Answers about Обычно я заодно захожу к нему.
Why is захожу used here instead of зайду?
The word обычно (usually) tells us this is a repeated, habitual action. Therefore, we need the imperfective verb заходить (conjugated here as захожу), rather than the perfective зайти, which would be used for a single, completed trip.
The lesson mentions using в/на + Accusative or к + Dative. Why do we use к here?
You use в or на + the Accusative case when dropping into a place (like a shop). But when dropping in on a person, you must use к + the Dative case. Here, the target of the visit is a person (он).
Why is it к нему and not just к ему?
Whenever a third-person pronoun (like он, она, оно, or они) directly follows a preposition, Russian adds an extra н- to the beginning of it to make it easier to pronounce. The normal Dative of он is ему, so it becomes к нему.
What exactly does the word заодно add to this sentence?
заодно means 'at the same time' or 'while I am at it.' It implies that visiting him is a convenient detour on the way to doing something else. This pairs perfectly with the verb prefix за-, which already carries the meaning of deviating from your main route.