休ん and 違うん . I don't get if this is a verb form, conjugation, a contraction or some grammar that I still don't know


I found these phrases reading and didn't get if they were a verb form,
conjugation or what, I neither could find them on a dictionary. I assume they
are colloquial forms of speaking and this is the context of each one:

  1. あんた学校どうする？念のため休んどいてもいいけど

  2. 何か違うんだろうか

  3. 考えんのやめよ




  1. 休んどいてもいい is a colloquial contraction of 休んでおいてもいい. See [this chart](https://japanese.stackexchange.com/a/18159/5010). 休んで is the simple te-form of 休む, but a te-form may be "fused" with a following subsidiary verb and look different.
  2. 違うんだろう is the dictionary form of the verb 違う, followed by an [explanatory-の](https://japanese.stackexchange.com/q/5398/5010), followed by だろう for inference.
  3. 考えんの is a colloquial contraction of 考えるの, which is 考える with a nominalizer. See [this rule](https://japanese.stackexchange.com/a/61959/5010).

* * *

Here are translations in case you need:

  1. 念のため休んどいてもいいけど  
= 念のため休んでおいてもいいけど  
It's fine to have a day off just in case.

  2. 何か違うんだろうか  
= 何か違うのだろうか  
I wonder, is it that something is different?

  3. 考えんのやめよ  
= 考えるの(を)やめよう  
I'm gonna stop thinking (about it).




  1. 休んどいてもいい is a colloquial contraction of 休んでおいてもいい. See [this chart](https://japanese.stackexchange.com/a/18159/5010). 休んで is the simple te-form of 休む, but a te-form may be "fused" with a following subsidiary verb and look different.
  2. 違うんだろう is the dictionary form of the verb 違う, followed by an [explanatory-の](https://japanese.stackexchange.com/q/5398/5010), followed by だろう for inference.
  3. 考えんの is a colloquial contraction of 考えるの, which is 考える with a nominalizer. See [this rule](https://japanese.stackexchange.com/a/61959/5010).

* * *

Here are translations in case you need:

  1. 念のため休んどいてもいいけど  
= 念のため休んでおいてもいいけど  
It's fine to have a day off just in case.

  2. 何か違うんだろうか  
= 何か違うのだろうか  
I wonder, is it that something is different?

  3. 考えんのやめよ  
= 考えるの(を)やめよう  
I'm gonna stop thinking (about it).

