Verb tenses in hypothetical situations


I'm wondering how Japanese tenses work for hypothetical situations that may
happen or could have happened.

More specifically, are the verb tenses in the below sentences correct?

> We probably would not have come this far without his support.
>
> 彼の支援がなかったら、ここまで進んで **なかった** でしょう。
>
> If you don't hurry, you will be late for school.
>
> 急がないと遅刻 **する** よ

I have seen [this
post](https://japanese.stackexchange.com/questions/25951/correct-verb-tenses-
for-if-would-type-sentences) as well, but I'm wondering about present and
future situations as well.




Yes, you are very correct. **~ないと** is a very common usage for hypothetical
future tense.

I would like to just point out that in your first past tense that the "if" is
actually implied by **なかったら** in the prior phrase, not **なかった** in the second,
like so:

> 彼の支援が **なかったら** 、ここまで進んでなかったでしょう。

and my translation

> **If it were not** for his support, we probably would not have come this
> far.




Yes, you are very correct. **~ないと** is a very common usage for hypothetical
future tense.

I would like to just point out that in your first past tense that the "if" is
actually implied by **なかったら** in the prior phrase, not **なかった** in the second,
like so:

> 彼の支援が **なかったら** 、ここまで進んでなかったでしょう。

and my translation

> **If it were not** for his support, we probably would not have come this
> far.

