96090
1. 30分ほどしたら戻ってきます  
I have a problem understanding the meaning of したら in this sentence.  
Not sure if する can be put directly after 30分ほど(time) in order to describe time
spent.

  2. 三日したら帰る  
Same problem of understanding したら in this sentence.  
It seems that the sentence translates to "go back after 3 days", but I'm still
confused of the grammar of したら.

Thx for the reply~ As far as i know, shouldn't "time spent+もする" be the correct
grammar? Why didn't も appear in the sentence?
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2022-09-03T01:39:45.187
96088
2022-09-03T08:06:59.497
2022-09-03T03:13:39.827
54395
54395
question
grammar
Understanding したら grammar in a sentence
This する means "(for time) to pass". You should be able to find this definition
in any dictionary.

  * しばらくしてからやります。  
I'll do it later (after a while).

  * ちょっとしたら彼は来るはずです。  
He should come in no time.

  * 5時間はしないと終わらない。  
We can't finish this at least in 5 hours.

Note that this is used **only in a subordinate clause** , usually with a
conditional expression (すれば, したら, すると, しないと, etc) or まで/から. In a main clause,
5時間した never means "Five hours passed".
CC BY-SA 4.0
2022-09-03T08:06:59.497
96090
2022-09-03T08:06:59.497
5010
96088
answer