connective N2 uncommon casualpolitewritten
〜ところを見ると — judging from the fact that ~
〜ところを見ると ・ ところをみると
Builds on ところ
Meaning
- judging from the fact that ~ / seeing that ~ — takes a scene the speaker is observing as the basis for a guess about what lies behind it
You see someone in a certain state (ところ = the scene/situation), and 〜を見ると ('seeing that') turns it into evidence for an inference. 黙っているところを見ると、怒っているのだろう ('judging from how he's gone quiet, he must be angry'). The conclusion is a guess, so the second clause almost always ends in a conjecture form (らしい・ようだ・のだろう・に違いない). It's about reading a present, observable situation — not citing an abstract fact.
Key sentence
電気が消えているところを見ると、もう寝たらしい。
Judging from the fact that the lights are off, it seems she's already gone to bed.
Formation
| Attaches to | Form | Example |
|---|---|---|
| Verb (plain, often ている/た), adjective, N + である — describing the observed state | V/A(plain) + ところを見ると | 笑っている → 笑っているところを見ると |
When: The speaker reasons aloud from something visible in front of them; the main clause is a tentative conclusion, not a fact.
Examples
あんなに食べているところを見ると、よほどお腹が空いていたのだろう。
Seeing how much he's eating, he must have been really hungry.
返事がないところを見ると、彼はもう出かけたのかもしれない。
Judging from the lack of a reply, he may have already left.
顔色が悪いところを見ると、体調がよくないようだ。
From the look of how pale she is, she seems to be unwell.
Easily confused with
ことから ことから cites an established *fact* as grounds and can lead to a firm conclusion or an explanation of origins; ところを見ると reads a *scene the speaker is watching* and lands on a tentative guess (らしい・だろう). ところから ところから presents a source/circumstance that something stems from (often how a name or situation arose); ところを見ると is specifically 'I observe this, therefore I infer ~'. らしい らしい / ようだ are the conjecture endings ところを見ると naturally pairs with — ところを見ると supplies the visible *evidence*, and the らしい states the inferred conclusion.
Notes
- The main clause needs a guessing form. ×「…ところを見ると、寝た」 alone is incomplete — it wants 寝たらしい / 寝たのだろう.
See 〜ところを見ると in real sentences
Jengo shows 〜ところを見ると the way you actually meet it: inside real Japanese sentences, so it sticks instead of staying an abstract rule.
Study it in JengoSources Compiled from published Japanese grammar references.