The Verb خلى the type of verb that contains a vowel which makes it part of the Defective Verbs الافعال الناقصة

While technically the names and classifications differ from one grammar book to another, this is how I would go about classifying the verbs that have 3 letter root.

Simple root: where the root does not contain a vowel.

An example would be:

he played ( لعب )

Incomplete: that contains a vowel. which you can subcategorize it into 3 types depending on whether the vowel is the 1st, 2nd, or 3rd letter.

An example would be:

he promised وعد

he said قال

he woke up صحي

lastly, we have the repeated type. which as the name suggests the 2nd and 3rd letters are the same.

An example would be:

he jumped نطّ ( the shadda on top of the ط indicates that the letter is repeated)

To Make. ( not physical )

What makes you think that I will go?

شو بيخليك تفكر اني راح أروح

Why did you make her angry?

ليش خليتها معصّبة ؟

For physical make, we would use عمل أو سوى.

I made a cake!

أنا عملت كيكة.

Let be or leave.

Leave the door open behind you,

خلي الباب مفتوح وراح

Let me be.

خليني في حالي.

Let the people sleep!

خلي الناس تنام

To keep:

I will keep some money with me for the bus.

راح اخلي مصاري معي للبص

Keep the change

خلي الباقي معك