〜ておく (more study notes)

So what is 〜ておく?

Essentially it is the te-form of a verb combined with the helping verb おく to state that an action is being performed in preparation for something. 

Examples: studying for a test next week, going on a diet for the summer, majoring in computer science for money... etc

These are times when you can use 〜ておく.

So how to use 〜ておく?

       1. From the dictionary form (ex: 食べる）change it into て form

        2. Add おく (とく for short)

        3. Follow the format: reason for action から/ので、action+ておく.

So a sentence example (I'll highlight where you'd put your because and your verb)

I'm studying since tommorrow there is class. →　明日クラスがあるので、私は勉強しておく。

thats it, I need to study my next grammer point and kanji soooo byee