At a glance
いっぱい means "full" or "full of". It describes a space, container, schedule or feeling that is filled with something. In casual speech it can also mean "a lot".
[Place/Thing] は/が [Noun] で いっぱいです。
教室は学生でいっぱいです。 The classroom is full of students.
How to form it
いっぱい attaches to nouns and verbs in these patterns:
| Pattern | Example | Meaning |
|---|---|---|
| [Noun] で いっぱい | 部屋が荷物でいっぱいです。 | The room is full of luggage. |
| [Noun] が いっぱい | お腹がいっぱいです。 | I'm full (after eating). |
| いっぱい + verb | 人がいっぱいいます。 | There are a lot of people. (casual) |
| いっぱい の + noun | 人でいっぱいの電車 | a train full of people |
いっぱい changes form with です or だ:
| Form | Polite | Casual |
|---|---|---|
| Present | いっぱいです | いっぱいだ |
| Negative | いっぱいじゃありません | いっぱいじゃない |
| Past | いっぱいでした | いっぱいだった |