Breakdown of Каждый год он ездит в отпуск.
он
he / it (for a masculine noun) / it (for a neuter noun)
в
in / to (direction)
год
year
каждый
every
Questions & Answers about Каждый год он ездит в отпуск.
Why do we use "ездит" here instead of "ходит" or "едет"?
Because this happens каждый год (every year), it is a repeated, round-trip habit. That means we need the multidirectional verb. We use ездить (to go by transport) rather than ходить (to go on foot) because going on vacation almost always involves taking a car, train, or plane.
Why doesn't "каждый год" have a preposition?
In Russian, expressions of frequency like "every year" or "every day" just use the accusative case with no preposition. Since год (year) is a masculine inanimate (non-living) noun, its accusative form looks exactly the same as its dictionary form.
Why does it say "в отпуск" when in English we say "ON vacation"?
Prepositions rarely match up perfectly between languages. In Russian, the standard phrase is в отпуск (literally "into vacation"). Because it is the destination of a motion verb, отпуск is in the accusative case.
How do we get "ездит" from the infinitive "ездить"?
Ездить belongs to the second conjugation (Type 2). For он (he), you simply drop the -ить and add the standard ending -ит to get ездит. It is completely regular here, but keep in mind that its "я" (I) form has a slight consonant mutation: я езжу.