Transitive vs Intransitive
Transitive and intransitive verbs are a fundamental distinction in Japanese grammar. Understanding which is which affects particle choice, sentence structure, and meaning.
Transitive (他動詞):
- Takes direct object
- Uses を particle
- Someone does action TO something
Intransitive (自動詞):
- No direct object
- Uses が particle
- Something happens by itself
Critical difference
Basic Definition
Transitive verbs
Take a direct object marked by を
ドアを開ける
"Open the door"
本を読む
"Read a book"
Subject does action TO object
Agent performs action
Volitional control
Intransitive verbs
No direct object, subject marked by が
ドアが開く
"Door opens"
花が咲く
"Flowers bloom"
Subject undergoes change
No external agent needed
Often spontaneous
The Particle Key
を = transitive signal
If you see を:
Transitive verb follows
電気を消す "turn off light"
窓を閉める "close window"
テレビをつける "turn on TV"
を marks direct object
Action done TO something
が = intransitive signal
If you see が with action verb:
Usually intransitive
電気が消える "light goes out"
窓が閉まる "window closes"
テレビがつく "TV turns on"
が marks subject
Thing that changes/moves
Meaning Difference
Focus shift
Transitive (agent focus):
私がドアを開けた
"I opened the door"
Emphasis on WHO did it
Intransitive (change focus):
ドアが開いた
"The door opened"
Emphasis on WHAT happened
Perspective changes
Different implications
Common Patterns
Many verb pairs exist
Transitive → Intransitive
開ける (akeru) → 開く (aku)
"open (tr.)" → "open (intr.)"
閉める (shimeru) → 閉まる (shimaru)
"close (tr.)" → "close (intr.)"
消す (kesu) → 消える (kieru)
"turn off (tr.)" → "go out (intr.)"
Related but different verbs
Paired meanings
Formation Patterns
Common suffixes
Transitive often ends in:
-eru: 開ける、閉める、つける
-asu: 出す、回す、動かす
-u: 切る、割る、曲げる
Intransitive often ends in:
-u (short): 開く、閉まる、つく
-areru: 見つかる、捕まる
-reru: 折れる、壊れる
Patterns help recognition
Not absolute rules
Responsibility and Control
Transitive = agent control
窓を開けた
"(Someone) opened window"
Implies: Deliberate action
Agent responsible
Volitional
Agent often explicit or understood
Intransitive = spontaneous
窓が開いた
"Window opened"
Implies: May be spontaneous
No clear agent
Just happened
Focus on result, not cause
With ている Form
Different meanings
Transitive + ている:
ドアを開けている
"Is opening door" OR "Has door open"
Intransitive + ている:
ドアが開いている
"Door is open" (resultant state)
Intransitive often = state
Transitive = action or state
Passive Confusion
Intransitive ≠ Passive
窓が開いた (intransitive)
"Window opened"
Natural, simple
窓が開けられた (passive)
"Window was opened (by someone)"
Agent implied
More formal
Different structures
Different implications
When Both Possible
Choice depends on focus
私が電気を消した
"I turned off the light"
Agent focus, deliberate
電気が消えた
"The light went out"
Result focus, may be spontaneous
Choose based on what you want to emphasize
Both grammatically correct
Different perspectives
In Causative
Transitive verbs in causative
食べる (transitive) → 食べさせる
"eat" → "make/let someone eat"
Intransitive verbs:
行く (intransitive) → 行かせる
"go" → "make/let someone go"
Both can be causative
But pattern awareness helps
Testing Transitivity
The を test
Can you add を + noun logically?
読む: 本を読む ✓ → Transitive
行く: *何かを行く ✗ → Intransitive
消す: 電気を消す ✓ → Transitive
消える: *何かを消える ✗ → Intransitive
Simple test method
Reliable check
Stative vs Active
Intransitive often describes state
ある "exist, be located"
いる "exist (animate)"
分かる "understand"
できる "can do"
No action TO something
State or condition
Marked with が
Subject Marking Exceptions
は can replace が/を
ドアは開いている
"As for the door, it's open"
本は読んだ
"As for the book, I read it"
は = topic marker
Can replace が or を
Context determines original
Motion Verbs
Usually intransitive
行く "go"
来る "come"
歩く "walk"
走る "run"
飛ぶ "fly"
No direct object
Movement itself
Destination marked by に/へ, not を
Giving and Receiving
Special category
あげる "give" - transitive
をあげる structure
もらう "receive" - transitive
をもらう structure
くれる "give (to me)" - transitive
をくれる structure
Take objects
Special semantics
Common Mistakes
❌ Using を with intransitive
✗ ドアを開く
(開く is intransitive)
✓ Use correct particle
✓ ドアが開く
✓ ドアを開ける
❌ Using が with transitive object
✗ 本が読む
✓ Use を for object
✓ 本を読む
❌ Confusing pairs
Learn which is which
Practice distinction
Practical Recognition
Ask yourself
1. Is someone doing something TO something?
→ Transitive (を)
2. Is something just happening?
→ Intransitive (が)
3. Can I add "by someone"?
→ If yes, probably transitive
4. Does を sound natural?
→ Transitive
Simple decision tree
Helps in real time
Examples Comparison
Side by side
Transitive:
私が窓を開けた "I opened window"
彼がドアを閉めた "He closed door"
母が電気を消した "Mom turned off light"
Intransitive:
窓が開いた "Window opened"
ドアが閉まった "Door closed"
電気が消えた "Light went out"
Notice particle change
Subject/object shift
Meaning nuance
In Complex Sentences
Both in one sentence
私がドアを開けたら、風が入って来た
"When I opened door, wind came in"
開けた = transitive (I opened)
来た = intransitive (wind came)
Mixed in natural speech
Understand each verb's type
Learning Strategy
Master the pairs
Learn common pairs together:
開ける ⟷ 開く
消す ⟷ 消える
始める ⟷ 始まる
See the relationship
Understand connection
Use context to choose
Most important skill
Foundation for correct usage