اختار البرنامج والدرجة عشان الصوف مايكشش.

It is the imperative form: a command to one person.

So اختار means choose / select.

In this sentence, the subject you is understood automatically, so Arabic does not need to say it explicitly.

• اختار = choose!
• implied subject = you

If you were speaking to a woman, you would usually say اختاري.
If you were speaking to more than one person, you would say اختاروا.

Because this sentence is in Egyptian Arabic, not Modern Standard Arabic.

• In MSA, the imperative is usually اختر.
• In Egyptian Arabic, people commonly say اختار.

So this is a normal colloquial Egyptian form, not a mistake.

In Arabic, the verb itself often tells you who the subject is.

Since اختار is an imperative, it already means you choose! or choose!
That is why Arabic does not need a separate word for you here.

This is very normal in both spoken and written Arabic.

Because both nouns are definite.

Arabic usually repeats the definite article with each noun in a pair:

• البرنامج والدرجة

This is more like the program and the temperature setting, not the program and temperature.

Repeating الـ here is the normal Arabic pattern.

Here it means temperature / degree setting.

The word درجة can mean different things depending on context, for example:

• grade
• level
• step
• degree / temperature

Because the sentence is about wool and washing settings, الدرجة here clearly means the temperature setting.

عشان is a very common Egyptian Arabic word. It can mean things like:

• because
• so that
• in order that

In this sentence, it means so that / in order that.

So grammatically, it introduces the purpose of choosing the right program and temperature.

This is the Egyptian Arabic negative pattern:

• ما ... ش

The verb inside is يكشّ.
So you can think of مايكشش as:

• ما + يكشّ + ش

That is the normal Egyptian way to say doesn’t shrink.

In informal writing, this is often written as one word, as here:

• مايكشش

But learners should understand it as a verb surrounded by the negative markers ما and ش.

In this context, يكشّ means to shrink, especially for cloth, fabric, or clothing in the wash.

So الصوف مايكشش means that the wool doesn’t shrink.

This is a colloquial Egyptian verb. In more formal Arabic, you might meet other verbs for shrink, but يكشّ is very natural in everyday laundry talk.

Because الصوف is treated as a singular masculine noun in Arabic.

So the verb matches it in the normal 3rd-person masculine singular form:

• هو يكشّ = it shrinks
• الصوف مايكشش = the wool doesn’t shrink

Even though English treats wool as an uncountable noun, Arabic still gives it normal grammatical gender and number.

The spelling stays the same, but the pronunciation changes depending on the next letter.

• البرنامج → el-barnāmeg
  The ل is pronounced normally because ب is a moon letter.

• الدرجة → ed-daraga
  The ل assimilates to د, because د is a sun letter.

• الصوف → eṣ-ṣūf
  The ل assimilates to ص, because ص is also a sun letter.

So the written الـ is always there, but the spoken form can change.

Yes. عشان and علشان are both very common in Egyptian Arabic.

They mean the same thing here.
علشان is just a fuller variant, while عشان is very common in everyday speech.

So in this sentence, either one would sound natural:

• عشان الصوف مايكشش
• علشان الصوف مايكشش