途中に・ 途中でon the way; partway through
Something is under way and hasn't reached its end: a trip home, a meeting, a book. 途中で is "on the way" or "partway through". It is an everyday word.
on the way
The train stopped while I was on my way home.
partway through
The fire alarm went off partway through the meeting, and the discussion broke off.
Verb
Verb (dictionary form or ている) + 途中で/途中に
Going and coming mostly take the dictionary form: 帰る途中で, 来る途中で. Other verbs are usually in ている: 読んでいる途中で.
Noun
Noun + の + 途中で/途中に
会議の途中で, 話の途中で.
By itself
途中で + verb
途中でやめる, to give up partway.
で or に?
I ran into a friend on the way to the station.
Something happened on the way: で.
There is a small post office on the way to the station.
Something is there along the way: に.
For something that happened, に is heard too, but で is the usual one. In writing the particle often drops: 帰る途中、.
The verb doesn't go into the past
You hadn't got home yet, so 帰る stays as it is, even when the sentence is about yesterday.
I dropped my wallet on the way home yesterday.
Not said: 昨日、
(I dropped my wallet on the way home yesterday.)
Things people say
途中でやめるgive up partway
My leg started to hurt, and I dropped out of the marathon partway through.
途中からfrom partway in
I started watching the film partway through, so I couldn't really follow the story.
途中までpart of the way
Shall we go part of the way home together?
ている途中だstill in the middle of
I'm still partway through this book, so please don't tell me the ending.
Close neighbours
最中にN3
Right in the thick of something, mostly when something else cuts in. 途中 only says the end hasn't come yet.
A work call came right in the middle of the meal.
間にN4
Any time inside a stretch, such as while you are out or in the shower. 途中 is for something with a destination or an end to reach.
The phone rang while I was taking a shower.
がけにN2
A few fixed words for a trip: 帰りがけに, on the way home; 出がけに, just as you leave.
On my way home I stopped at the bookshop by the station and bought a new release.
Check yourself
1Which one fits?
昨日、
Choose an answer to see why.
2Which one fits?
会社へ
Choose an answer to see why.
More detail
News and reports join it straight to a noun for a trip, with no の: 帰宅途中, 通勤途中.
He had an accident on his way to work.
More sentences
On the way to the station, it suddenly started to rain.
The team changed captains partway through the season.
I'm in the middle of checking the application form now.
There is a hut where you can rest on the way to the summit.