هي شافت القميص الابيض وقالت انها بدها اياه.

Because in Levantine, the subject pronoun is often optional.

• شافت by itself already tells you the subject is she
• هي شافت adds clarity, emphasis, or a topic-like feel: she saw...

So both are possible:

• شافت القميص الأبيض = She saw the white shirt
• هي شافت القميص الأبيض = also She saw the white shirt, but with extra emphasis on she

That -ت marks the 3rd person feminine singular in the past tense.

Examples:

• شاف = he saw

• شافت = she saw

• قال = he said
• قالت = she said

So in this sentence, both verbs match a feminine subject: she.

Because in Arabic, adjectives normally come after the noun they describe.

So:

• القميص الأبيض = literally the shirt the-white

This is the normal Arabic word order, unlike English, where the adjective usually comes first.

Because Arabic adjectives agree with the noun in definiteness.

Since القميص is definite (the shirt), the adjective must also be definite:

• قميص أبيض = a white shirt
• القميص الأبيض = the white shirt

So both words take الـ.

In careful spelling, it would normally be written الأبيض.

The same goes for:

• أنها rather than انها
• إياه rather than اياه

In casual typing, many native speakers leave out hamzas, especially online or in informal messages. So the sentence is very normal as typed, even if it is not fully careful orthography.

أنها / إنها here means that she.

So:

• وقالت إنها بدها إياه = and she said that she wants it

A useful way to think about it:

• إنو = that
• إنها = that she

So this sentence could also be phrased colloquially as:

• وقالت إنو هي بدها ياه

Both are natural, though the exact preference depends on region and style.

بدها means she wants.

It comes from the very common Levantine expression بدّ for wanting.

Examples:

• بدي = I want
• بدك = you want
• بده = he wants
• بدها = she wants
• بدنا = we want

So here:

• بدها إياه = she wants it

Because with بدّ, Arabic usually uses a separate object-pronoun form like إياه / ياه, rather than attaching the object directly to بدها.

So you get:

• بدها ياه / إياه = she wants it / him
• بدي ياها / إياها = I want it / her
• بدهم ياهم / إياهم = they want them

This is why بدهاه is not the normal form.

In everyday Levantine speech, the shorter spoken form ياه is especially common.

Because Arabic object pronouns reflect the gender of the noun they refer to.

Here, القميص is a masculine noun, so the pronoun is masculine too:

• إياه / ياه = it / him for a masculine noun
• إياها / ياها = it / her for a feminine noun

So even though English says it, Arabic still treats the shirt as grammatically masculine.

It is basically Levantine, but it has a slightly mixed written feel.

Colloquial parts include:

• شافت
• بدها
• إياه / ياه

More standard-looking parts include:

• the spelling style
• أنها in writing

A very natural everyday Levantine version could be:

• هي شافت القميص الأبيض وقالت إنها بدها ياه
• or هي شافت القميص الأبيض وقالت إنو هي بدها ياه

So yes, it is normal, but it sits somewhere between casual speech and semi-standard written Arabic.

A rough pronunciation might be:

• hiyye shāfet il-qamīṣ il-abyad w-ʔālet innha baddha yāh

A few notes:

• هي is often pronounced hiyye
• إياه is often reduced in speech to ياه
• the exact pronunciation of ق varies by region:
  • some speakers keep it as q
  • many urban speakers pronounce it like a glottal stop

So in real life, you may hear slightly different versions, but the grammar is the same.

Yes.

You could say:

• شافت القميص الأبيض وقالت إنها بدها ياه

That is still completely natural, because the verbs already show the subject is she.

Adding هي just makes the subject more explicit or more prominent.