If you learn only one thing about です in your first month, make it this: です is not the English verb "to be." It looks like it — textbooks gloss it as "is/am/are" — and that gloss is the source of the most persistent beginner error in the entire language. English hands you a single verb, to be, that quietly does three different jobs. Japanese refuses to merge them, and です covers only one. Get the split wrong and you produce non-sentences like ×部屋にテレビです — a string a Japanese speaker cannot parse. This page shows you exactly where the false friend bites and gives you a two-word diagnostic that ends the problem. The positive picture is on The Copula だ / です.
The one error to burn out first
Picture yourself describing a hotel room. You want to say "There's a TV in the room." Your English brain assembles room — in — TV — is, and out comes ×部屋にテレビです. It feels airtight, and it is completely wrong.
❌ 部屋にテレビです。
heya ni terebi desu
Not a sentence — です cannot mean 'there is.' Existence needs ある.
✅ 部屋にテレビがあります。
heya ni terebi ga arimasu
There's a TV in the room.
The fix is not a tweak — it's a different verb. "There is / there are" is ある (for inanimate things) or いる (for living things), never です. です can only equate one noun with another; it has no power to assert that something exists.
あそこにコンビニがありますよ。
asoko ni konbini ga arimasu yo
There's a convenience store over there.
台所に猫がいる。
daidokoro ni neko ga iru
There's a cat in the kitchen.
Why English hides the split
In English, to be does at least three separate jobs, all with the same word:
- Identity / equation — "This is a book."
- Existence — "There is a book (somewhere)."
- Location — "The book is on the desk."
Japanese assigns these to two completely different systems. Identity is the copula's job — だ／です. Existence and location belong to ある／いる. Nothing in your native language flags that these are different relationships, so the single English "is" leads you to reach for です every time. The cure is to stop translating the word "is" and start asking what it's doing.
これは本です。
kore wa hon desu
This is a book. (identity — です is right)
そこに本があります。
soko ni hon ga arimasu
There's a book there. (existence — ある, never です)
Both English sentences use "is." Only the first is a です sentence, because only the first equates two nouns (this = a book). The second asserts that a book exists at a place — a different job entirely.
ある or いる? Only after you've chosen existence
Once the two-word test tells you "exist," you make a second, smaller choice: ある for inanimate things (objects, plants, buildings, abstract things) and いる for animate beings that move under their own power (people, animals). This animacy split has its own page, ある・いる: The Animate/Inanimate Split; here just note that neither of them is ever です.
冷蔵庫にビールがある。
reizōko ni bīru ga aru
There's beer in the fridge. (inanimate → ある)
庭に犬がいます。
niwa ni inu ga imasu
There's a dog in the garden. (animate → いる)
The location trap: に-phrases demand ある, not です
There is a subtler version of the error that survives longer, because it sometimes looks right. Learners over-extend です to location — "the book is on the desk" → ×本は机の上にです. But once you have a full location phrase with に ("on the desk," 机の上に), you are describing where the thing sits — that's existence, so the verb must be あります.
❌ 本は机の上にです。
hon wa tsukue no ue ni desu
Incorrect — a に-location phrase needs the existence verb ある.
✅ 本は机の上にあります。
hon wa tsukue no ue ni arimasu
The book is on the desk.
An honest complication: X は ［place］です is fine
Here is where it gets tricky, and where honesty matters. You will hear perfectly correct sentences like 銀行はあそこです ("The bank is over there"). Isn't that です meaning "is located"? Not quite — it's です doing its normal identity job. In 銀行はあそこです, です equates the topic (the bank) with a bare place-word answer (あそこ, "over there"): "as for the bank, it's [=] the over-there one." That's a nominal equation, not an existence claim.
銀行はどこですか。
ginkō wa doko desu ka
Where's the bank?
銀行はあそこです。
ginkō wa asoko desu
The bank is over there. (equation: bank = the over-there one)
The reliable line is this: a bare place-word as the whole answer (あそこ, 三階, 東京) can be equated with です. But the moment you build a に-marked existence frame — ［place］に ［thing］が — you are asserting existence, and the verb must be ある／いる. So 会議室は三階です ("the meeting room is on the third floor" — equation) is fine, while ×三階に会議室です is not; that needs 三階に会議室があります. The full frame lives on に: Location of Existence.
The mirror error: don't use ある／いる for identity
Overcorrection creates the opposite mistake. Having learned "existence uses いる," some learners reach for it to say "I am a student" — ×私は学生がいます — which absurdly claims "as for me, a student exists." Identity is always the copula.
❌ 私は学生がいます。
watashi wa gakusei ga imasu
Wrong — this says 'a student exists,' not 'I am one.' Identity is です.
✅ 私は学生です。
watashi wa gakusei desu
I am a student.
Common mistakes
❌ 机の上に本がです。
tsukue no ue ni hon ga desu
Not a sentence — existence of a thing is ある.
✅ 机の上に本があります。
tsukue no ue ni hon ga arimasu
There's a book on the desk.
❌ 部屋に誰かです。
heya ni dareka desu
Not a sentence — a person existing takes いる, not です.
✅ 部屋に誰かいます。
heya ni dareka imasu
There's someone in the room.
❌ 車がです。
kuruma ga desu
Not a sentence — 'I have a car' is not a copula sentence; possession is existence.
✅ 車があります。
kuruma ga arimasu
I have a car. (lit. a car exists to me)
The "have" case shows how deep the split runs: Japanese even frames possession as existence, not as a です sentence — worked out on Translating 'Have' Wrongly.
Key takeaways
- です ≠ "to be." It equates a noun with a predicate (X = Y); it can never mean "there is / there are."
- Before translating "is," ask equate or exist? Identity → だ／です; existence or location → ある (things) / いる (the living).
- A に-marked location phrase (机の上に…) forces あります; ×…にです is impossible.
- X は ［bare place-word］です is fine — that's です equating, not asserting existence (銀行はあそこです).
- Don't overcorrect: identity ("I am a student") is です, never ある／いる.
Now practice Japanese
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Start learning Japanese→Related Topics
- The Copula だ / ですN5 — What the copula だ/です actually does — it links a noun or na-adjective to the sentence as its predicate — and the crucial fact that it is not the all-purpose English verb 'to be': existence and location use ある/いる, never です.
- Translating 'Have' WronglyN4 — English 'have' is a catch-all; Japanese splits it three ways — ある for things you possess, いる for people and animals, 持っている for what you physically hold — so ×兄を持っている ('have a brother') is jarring.
- に: Location of Existence (ある・いる)N5 — に marks the point where something exists or is statically located, and pairs inseparably with ある/いる — the cleanest way to lock in the に-for-existence versus で-for-action split.