あれは私（わたし）のペンです。

これも私（わたし）のペンです。

これは私（わたし）の猫（ねこ）です。

先生（せんせい）の傘（かさ）です。

あなたの名前（なまえ）は？

これも生徒（せいと）のノートです。

これはお父（とう）さんの時計（とけい）だ。

今日（きょう）の夜（よる）。

これはお母（かあ）さんの部屋（へや）です。

駅（えき）のホーム。

これは、私（わたし）の兄（あに）だ。

これは生徒（せいと）のノートです。

<div class='writeup-body'>From the perspective of English, の has several different meanings. It can indicate possession, like putting (A)'s on the end of a word. In Japanese, however, the meaning is a bit broader, and shows that (B) is an attribute/possession of (A).<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>これは妹（いもうと）の車（くるま）です。</div><div class='writeup-example--english'>This is my sister's car.</div></li><li class='writeup-example'><div class='writeup-example--japanese'>今日（きょう）の夜（よる）。</div><div class='writeup-example--english'>Today's night. (Not very natural in English, but 'tonight' is an attribute of 'today' in Japanese, so it works)</div></li></ul>In the first sentence, we can see that の is showing ownership, however in the second sentence, it is simply showing a relationship between (A) and (B). の is also often used in the same way as が, to highlight the subject of a statement.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>私（わたし）が好（すき）きなお酒（さけ）はビールです。</div><div class='writeup-example--english'>My preferred drink is beer. (Alcoholic drink)</div></li><li class='writeup-example'><div class='writeup-example--japanese'>私（わたし）の好（すき）きなお酒（さけ）はビールです。</div><div class='writeup-example--english'>My preferred drink is beer. (Alcoholic drink)</div></li></ul><div class='writeup-caution'><div class='caution-header'>Caution</div>の is usually used after nouns, but can also be used after other types of words, specifically when it is transforming them into a noun-like phrase. This is called nominalization in English. We will cover this in detail in the の - Nominalization grammar point.</div></div>

Grammar Info

の

Indicates possession