Explanatory の / んだ / んです *PATREON-EXCLUSIVE* (Patreon)

こんにちは！
This time we'll learn another super important grammar point "の / んだ / んです" which is also called "Explanatory particle".
A lot of people requested for this lesson and finally here it is!

It has many uses such as:

★Explaining / Asking for explanation
★Introductory Remark
★Expressing Surprise
and more :)

As usual feel free to make example sentences in the comments below!