Learn Hardcore Arabic (Egyptian): اختي وصلت البيت متاخر امبارح وهي لسه تعبانة النهارده. - My sister got home late yesterday, and she is still tired today.

You may also hear slightly different vowels, like ukhti / okhti or embāriḥ / embāreḥ.
Egyptian Arabic spelling is not fully standardized, so pronunciation guides can vary a little.

What is the basic structure of the sentence word by word?

A helpful breakdown is:

So the overall structure is:

My sister arrived home late yesterday, and she is still tired today.

Why is وصلت used instead of وصل?

Because اختي means my sister, which is feminine.

In the past tense, Egyptian Arabic marks she on the verb with -ت:

So اختي وصلت means my sister arrived.

Why is there no preposition before ? Why not something like ?