に
(Ni)
location relative to a reference (above, below, inside, in front, behind, next to).
Connection rules
- +Reference noun + の + location noun + に/で/へ + verb.
- +Common location nouns: 上, 下, 中, 前, 後ろ, 横, 隣, 間, 右, 左, 外, 近く.
- +の is required between the reference noun and the location noun.
Examples
1.
机の上に本があります。

Tsukue no ue ni hon ga ari masu.
There is a book on the desk.
「location relative to a reference (above, below, inside, in front, behind, next to)」
2.
学校の前で会いましょう。

Gakkou no mae de ai masho u.
Let's meet in front of the school.
「location relative to a reference (above, below, inside, in front, behind, next to)」
Practice
The cat is under the chair.
猫が___います。
Romaji also accepted