この机（つくえ）の上（うえ）に座（すわ）る。

図書館（としょかん）に本（ほん）を返（かえ）す。

彼（かれ）はあそこにいます。

ここに本（ほん）を置（お）く。

駅（えき）に行（い）く。

病院（びょういん）に行（い）く。

美味（おい）しいレストランに行（い）く。

家（いえ）に帰（かえ）る。

学校（がっこう）に行（い）く。

友達（ともだち）の家（いえ）にいる。

田中（たなか）さんは、公園（こうえん）にいる。

車（くるま）に乗（の）る。

<div class='writeup-body'>に can be a very difficult particle to master in Japanese, as it has many different translations in English. These translations are usually 'in', 'at', 'to', 'for', or 'on'. Let's look at an example of each meaning.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>彼（かれ）は部屋（へや）にいますよ。</div><div class='writeup-example--english'>He is in his room. (に as 'in')</div></li><li class='writeup-example'><div class='writeup-example--japanese'>私（わたし）は家（いえ）にいます。</div><div class='writeup-example--english'>I'm at home. (に as 'at')</div></li><li class='writeup-example'><div class='writeup-example--japanese'>公園（こうえん）に行（い）く。</div><div class='writeup-example--english'>To go to the park. (に as 'to')</div></li><li class='writeup-example'><div class='writeup-example--japanese'>私（わたし）は誕生日（たんじょうび）にケーキを食（た）べる。</div><div class='writeup-example--english'>I will eat cake for my birthday. (に as 'for')</div></li><li class='writeup-example'><div class='writeup-example--japanese'>バスに乗（の）る。</div><div class='writeup-example--english'>To ride on the bus. (に as 'on')</div></li></ul>While these examples may seem quite confusing at first, it will be easier to think of に as always having one 'basic' meaning. That meaning is to be the 'end-point' of an action. This means that whatever action is being described, can only be considered complete/able to be completed once you're at/while you're at the location/time described in the sentence.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>マンションに住（す）む。</div><div class='writeup-example--english'>To live in an apartment.</div></li> <li class='writeup-example'><div class='writeup-example--japanese'>旅館（りょかん）に泊（と）まる。</div><div class='writeup-example--english'>To stay at a hostel.</div></li></ul>Verbs like 住（す）む (to live/dwell) often confuse learners, as they use に instead of で. This is also due to the fact that 住（す）む is a verb that can only be 'completed' at the destination. (You can only complete the act of living/dwelling in the place that you live, so to speak).</div>

Grammar Info

に

In, At, To, For, On