Mastering the difference between 〜ている and 〜てある to describe states and results.
Context
Describing the world around you
Imagine you walk into a room. You notice the window is open, and a document is left on the desk. You aren't necessarily interested in who opened the window or who left the paper; you just want to describe the current state of the room.
In Japanese, we use specific verb forms to distinguish between a state that exists naturally (intransitive) and a state that exists because someone intentionally performed an action (transitive). Understanding this distinction helps you describe your environment with precision.
Explanation
The Grammar of States
We use 〜ている with intransitive verbs to describe a state, and 〜てある with transitive verbs to describe a state resulting from a deliberate action.
Intransitive-ている / Transitive-てある
Use Intransitive + 〜ている to focus on the current state of an object, regardless of how it got that way. For example, 'The door is open' (ドアが開いている) simply describes the door's condition.
Use Transitive + 〜てある when you want to imply that someone performed the action and the result remains. For example, 'The door has been opened' (ドアが開けてある) implies someone opened it for a specific purpose.
Watch out
Remember: 〜てある is only used with transitive verbs. You cannot use it with intransitive verbs.
Examples
Examples in Context
See how these forms change the focus of the sentence.
窓が開いている。
The window is open.
窓まどwindow開いているあいているis open (intransitive state)
書類が机の上に置いてある。
The document has been placed on the desk.
書類しょるいdocument置いてあるおいてあるhas been placed (transitive state)
電気が【ついている】。
Hint: Use the intransitive verb 'tsuku' in the state form.
The lights are on (state).
Usage
Nuance and Usage
Choosing between these forms depends on whether you want to emphasize the 'result of an action' or just the 'current state'.
Focus Comparison
〜ている
Focus on the object's current state.
電気がついている (The light is on)
〜てある
Focus on the result of an intentional action.
電気がつけてある (The light has been turned on [by someone])
Which sentence implies that someone intentionally prepared the dinner?
夕食ができている
✓ 夕食ができてある
〜てある is used with transitive verbs to show a result of an intentional action. Note: 'dekiru' is intransitive, so in natural Japanese, we use 'tsukutte aru' (made/prepared).
Deep dive
Deep Dive: Transitive/Intransitive nuance
Advanced learners should note that 〜てある often carries a sense of preparation for the future.
When you say 'チケットを予約してある' (The ticket has been reserved), you aren't just stating the status; you are highlighting that the preparation for a future event is complete. This nuance of 'readiness' is a key feature of the 〜てある construction.
Summary
Summary
Recap of the lesson.
Use 〜ている with intransitive verbs for natural states, and 〜てある with transitive verbs for states resulting from human action. This distinction is vital for describing settings and preparations in Japanese.