Learn Polish: Ten nowy samochód stoi w garażu. - This new car stands in the garage.

The preposition w (in) takes the Locative case when talking about a fixed location. While many masculine nouns take an -e ending in the Locative, nouns ending in a 'historically soft' consonant like -ż take an -u ending instead. Therefore, garaż becomes garażu.

Why does the sentence use stoi (stands) instead of jest (is)?

Polish often prefers specific verbs of position over the generic verb to be (być). Because a car rests on its wheels on the ground, it naturally 'stands' (stoi). You could say jest w garażu (is in the garage) and it would be perfectly understood, but stoi sounds much more natural and descriptive to a native speaker.

Why do we use Ten for 'this' instead of Ta or To?

Ten is the masculine form of the word 'this'. Even though a car is an inanimate object, the Polish noun samochód belongs to the masculine gender. If you used the neuter word for car (auto), you would have to use the neuter demonstrative and adjective: To nowe auto.

What is the dictionary form (infinitive) of stoi?