Examples
Meaning
に points to a specific point. That point can be a time, a destination, a place where something exists, or a person connected to an action.
Formation
Put に after the noun that shows the point. For example, 七時に shows a specific time, 学校に shows a destination, and ここに shows a place of existence.
Usage
Use に with specific times such as 七時に. Use it with movement verbs such as 行きます, 来ます, and 帰ります to show destination. Use it with います and あります to show where someone or something exists. It can also mark the person you meet, as in 友だちに会います.
Nuance
に often feels like a pin placed on a point. It does not describe the action area in the same way as で. Instead, it tells the listener where, when, or to whom something is directed.
Comparison
Compared with で, に is used for existence or destination. Compared with へ, に gives a clearer sense of arrival at a destination.
Common Mistakes
A common mistake is using に with broad time words that usually do not need it, such as 今日に. Another mistake is using に for the place where an action happens, as in 学校に勉強します instead of 学校で勉強します.
Related Grammar
で
で (de) marks where an action happens or what means, tool, or language is used. It is different from に, which often marks existence or destination.
に vs で
に and で are both used with places, but they do different jobs. に often marks where something exists, while で marks where an action happens.
に vs へ
に and へ can both mark direction with movement verbs, but に focuses more on the destination, while へ focuses more on the direction toward it.