You learned 〜ている as the "-ing" form: 食べている "is eating," 待っている "is waiting." Clean, useful, and it quietly sets a trap. For a whole class of verbs, 〜ている does not mean "in the middle of doing it" — it means the action already happened and its result still holds now. That is why "I know" is 知っている and never ×知る, why "I live in Tokyo" is 東京に住んでいる, and why "the goldfish is dead" is 死んでいる — the exact opposite of the "is dying" your English ear expects. This page drills the mis-tensing; for the full mechanism see 〜ている: Resultant State.
Why the trap exists: two kinds of verb
Japanese verbs split by their inner shape (their Aktionsart), and 〜ている reads that shape:
- Activity verbs (eat, run, read, wait) have a drawn-out middle, so 〜ている sits inside the action → "is V-ing." 食べている = is eating.
- Change-of-state verbs (know, marry, die, arrive, open) name an instant flip from one state to another. There is no "middle" to be inside. So 〜ている can't be a progressive — it locks onto the state left behind → "is now in the state of having V-ed." 死んでいる = is dead.
Same ending, opposite meaning, decided entirely by the verb. English speakers reach for the dictionary form (知る, 住む) for these states because their instinct says "no -ing needed" — but the dictionary form is the wrong tool. The full two-meaning system is on 〜ている's two meanings.
The big three: know, live, have
These three are so common, and so reliably mistaken, that you should burn the 〜ている form into memory as vocabulary. The plain forms almost never mean what English "know / live / have" mean.
| Plain form (points forward) | 〜ている (current state) | English |
|---|---|---|
| 知る "come to know" | 知っている | know |
| 住む "settle / move in" | 住んでいる | live (somewhere) |
| 持つ "take in hand / acquire" | 持っている | have / own |
その店なら知ってるよ。駅の裏にあるよね。
sono mise nara shitteru yo. eki no ura ni aru yo ne
I know that shop. It's behind the station, right?
今、名古屋に住んでいます。前は大阪にいました。
ima, nagoya ni sunde imasu. mae wa ōsaka ni imashita
I live in Nagoya now. I used to be in Osaka.
傘、持ってる?一本貸してほしいんだけど。
kasa, motteru? ippon kashite hoshii n da kedo
Do you have an umbrella? I'd like to borrow one.
The logic is transparent once you see it: 知る is literally "to come to know," so 知っている = "I have come to know it and I still know it" = "I know." Plain 知る on its own points at finding out later: その時、彼の名前を知る ("at that moment I'll learn his name"). There is no plain 知る that means the present "I know."
"I'm married" — the double trap
This one catches everybody, because English married is an adjective-like state, so learners grab a form that isn't the state. Two wrong guesses, one right answer:
- ×結婚する = "will get married" (the future event) — wrong for a current fact.
- ×結婚した = "got married" (reports the wedding as a past event) — not how you state the enduring status.
- ✅ 結婚している = "is married" (the standing state) — this is the one.
兄はもう結婚していて、子供が二人いる。
ani wa mō kekkon shite ite, kodomo ga futari iru
My older brother is married and has two kids.
失礼ですが、結婚していますか。
shitsurei desu ga, kekkon shite imasu ka
Excuse me for asking, but are you married?
The standard, neutral way to ask or state marital status is 結婚しています — the state form. 結婚しました is not ungrammatical; it just reports the wedding as a fresh event ("I got married"), which is why answering "Are you married?" with 結婚しました sounds like you're announcing you just tied the knot rather than describing your status.
死んでいる = "is dead," not "is dying"
The most vivid case, because the mistranslation is so stark. 死ぬ ("to die") is punctual — the flip from alive to dead is instantaneous. So 死んでいる cannot be a progressive; it is the result: dead-and-still-dead.
見て、道にセミが死んでいる。
mite, michi ni semi ga shinde iru
Look, there's a dead cicada on the path.
"Is dying" — the drawn-out process — is a completely different construction, 死にかけている ("is on the verge of dying"):
庭の木が病気で、少しずつ枯れかけている。
niwa no ki ga byōki de, sukoshi zutsu karekakete iru
The tree in the garden is sick and slowly dying.
The same holds for the other punctual verbs: 来ている = "has arrived / is here" (never "is on the way"), 着いている = "has arrived," もう始まっている = "has already started." Translate them with an English adjective ("is …-ed") or a perfect ("has …"), almost never "-ing."
田中さんはもう来ているから、先に始めよう。
tanaka-san wa mō kite iru kara, saki ni hajimeyō
Tanaka's already here, so let's get started.
The one irregular: 知っている → 知らない
There is a genuine wrinkle you must simply memorize. The regular negative of 〜ている is 〜ていない ("hasn't …-ed / isn't …-ing"). But the negative of 知っている ("I know") is not ×知っていない — it is the plain negative 知らない ("I don't know"). Two different stems for the affirmative and the negative.
その人の名前は知らない。会ったこともない。
sono hito no namae wa shiranai. atta koto mo nai
I don't know that person's name. I've never even met them.
The reason: not knowing isn't the absence of a completed change — you never underwent the change at all, so there's no "result state" to negate. Bolt 知っている / 知らない into memory as a matched pair from day one.
Common mistakes
1. Dictionary 知る for "I know." The plain form means "come to know" (future); the present state is 知っている.
❌ 私はその歌手を知る。
watashi wa sono kashu o shiru
Wrong as 'I know that singer' — 知る is future 'will come to know'; use 知っている.
✅ 私はその歌手を知っている。
watashi wa sono kashu o shitte iru
I know that singer.
2. Dictionary 住む for where you live now. 住む reads as a future move; your current residence is 住んでいる.
❌ 東京に住む。
tōkyō ni sumu
Wrong as 'I live in Tokyo' — 住む reads as 'will move to Tokyo'; use 住んでいる.
✅ 東京に住んでいる。
tōkyō ni sunde iru
I live in Tokyo.
3. Past 結婚した / future 結婚する for the state "I'm married." The enduring status is 結婚している.
❌ 姉は結婚した。今、幸せそう。
ane wa kekkon shita. ima, shiawase sō
Off as a status — 結婚した reports the wedding event; for 'is married' use 結婚している.
✅ 姉は結婚していて、今、幸せそう。
ane wa kekkon shite ite, ima, shiawase sō
My sister is married and seems happy now.
4. Reading 死んでいる as "is dying." It is the result: "is dead." "Is dying" is 死にかけている.
❌ 金魚が死んでいる。早く病院に連れて行こう。
kingyo ga shinde iru. hayaku byōin ni tsurete ikō
Contradictory — 死んでいる means 'is dead,' so rushing it to a vet makes no sense.
✅ 金魚が弱っている。早く何とかしよう。
kingyo ga yowatte iru. hayaku nantoka shiyō
The goldfish is weakening — let's do something quick.
5. Regularizing the negative to ×知っていない. "I don't know" is 知らない.
❌ この漢字の読み方を知っていない。
kono kanji no yomikata o shitte inai
Wrong — 'I don't know' is 知らない, never 知っていない.
✅ この漢字の読み方を知らない。
kono kanji no yomikata o shiranai
I don't know how to read this kanji.
Key takeaways
- For change-of-state verbs, 〜ている = ongoing state, not action in progress: 知っている "know," 住んでいる "live," 持っている "have," 結婚している "is married."
- The plain dictionary form of these verbs points to the future change (知る "will come to know," 住む "will move in") — which is why ×知る for "I know" is broken.
- "I'm married" is 結婚している; ×結婚する is future, ×結婚した is the wedding event.
- 死んでいる = "is dead," not "is dying" ( = 死にかけている). Punctual verbs give a result, not a process.
- Memorize the irregular: 知っている → 知らない (never ×知っていない).
Now practice Japanese
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Start learning Japanese→Related Topics
- 〜ている vs 〜てある: State vs Intentional ResultN3 — A two-question flowchart for picking 〜ている or 〜てある — first the verb's transitivity forces the auxiliary, then a nuance choice decides whether you flag a hidden, deliberate agent.
- Transitive/Intransitive Mix-upsN3 — Japanese keeps paired verbs where English reuses one word — 開ける/開く, 閉める/閉まる — and the を-vs-が cue tells you which member a sentence needs, so ×ドアが開ける and ×ドアを開く are both broken.