71818
> 学生時代にもっと勉強すればよかった **と** 、今ではとても残念だ。

This doesn't seem like the ～と... pattern:

> Expresses the idea that when ～ arises or happens, it will definitely lead to
> ...
CC BY-SA 4.0
2019-09-14T18:56:46.647
71810
2019-09-15T10:25:55.837
35041
question
grammar particle-と
What is the function of と in this sentence?
In this context, と is used to refer to the preceding phrase, or
学生時代にもっと勉強すればよかった. This is because we can consider that と is a part of と思う and
that 思う is omitted from the sentence. Indeed, by inserting 思う, we can
paraphrase the sentence as follows:

> (1) 学生時代にもっと勉強すればよかった **と** ，今ではとても残念に **思う** ．
>
> (I should have studied more in my school years. Now I deeply regret
> **that**.)

Now, for a quick understanding of how と works, consider a simplified version
of sentence (1):

> (2) 学生時代にもっと勉強すればよかった **と** ~~，今ではとても残念に~~ **思う** ．
>
> (I think **that** I should have studied more in my school years.)

In sentence (2), と is indeed used to refer to the preceding phrase.

Next, for a further understanding of how と works, consider an expanded version
of sentence (1):

> (3) 学生時代にもっと勉強すればよかった **と** ，今では`学生時代にもっと勉強しなかったことを`とても残念に **思う** ．
>
> (I should have studied more in my school years. Now I deeply regret **that**
> `I did not study more in my school years`.)

In sentence (3), と is essentially used to refer to the preceding phrase. This
is because what I deeply regret now, or `学生時代にもっと勉強しなかったこと`, can only be
inferred from the phrase preceding と.
CC BY-SA 4.0
2019-09-15T10:20:17.830
71818
2019-09-15T10:25:55.837
2020-06-17T08:18:27.500
-1
35390
71810
answer