اشترت أمي هدية مختلفة من المتجر الذي في هذا الشارع.

This is a very normal word order in Modern Standard Arabic. Arabic often uses verb + subject + object order, so اشترت أمي means my mother bought.

You can also say أمي اشترت..., but that puts a little more focus on my mother. The version in your sentence sounds very natural for neutral narration.

The basic past-tense verb is اشترى = he bought. When the subject is feminine singular, Arabic adds ـتْ in the past tense, giving اشترت = she bought.

So here:

• اشترى = he bought
• اشترت = she bought

Because أمي is feminine, the verb must be feminine too.

Because the subject is أمي, and mother is feminine. In Arabic, the past-tense verb still shows gender, even when the subject comes after the verb.

So اشترت أمي is literally bought-she my mother, but in natural English that becomes my mother bought.

أمي is made from:

• أم = mother
• ـي = my

So أمي literally means my mother. Arabic often attaches possessive endings directly to nouns instead of using a separate word like my.

Arabic does not have an indefinite article like a/an. A noun without الـ is usually indefinite.

So:

• هدية = a gift
• الهدية = the gift

That is why هدية مختلفة naturally means a different gift.

Arabic adjectives must match the noun they describe in:

• gender
• number
• definiteness
• case

Here, هدية is:

• feminine singular
• indefinite

So the adjective must match it:

• مختلفة = feminine singular, indefinite

If the noun were definite, you would also make the adjective definite:

• الهدية المختلفة = the different gift

Yes. من usually means from, and here it marks the source of the purchase: the gift was bought from the store.

This is natural in both Arabic and English:

• اشتريتُه من المتجر = I bought it from the store

If you used في المتجر, that would mean in the store, which focuses more on location than source.

الذي is a relative pronoun meaning that, which, or who depending on context. In this sentence, it means that/which.

So:

• المتجر الذي في هذا الشارع = the store that is on/in this street

It agrees with المتجر, which is masculine singular.

Because المتجر is masculine singular, and الذي is the masculine singular relative pronoun.

Compare:

• الذي = masculine singular
• التي = feminine singular

So if the noun were feminine, you would use التي instead.

The clue is the relative pronoun الذي. It is masculine singular, so it matches المتجر.

But هدية is feminine, so a clause describing هدية would need a feminine form, not الذي. This agreement helps Arabic make the relationship very clear.

In present-tense Arabic, the verb to be is usually not written or spoken in simple sentences like this.

So الذي في هذا الشارع literally looks like that in this street, but it means that is in/on this street.

This is a very common feature of Arabic:

• هو في البيت = he is at home
• not he is is at home

In standard Arabic, when a demonstrative like هذا means this before a noun, the noun is usually definite:

• هذا الشارع = this street

But هذا شارع usually means something different:

• هذا شارع = this is a street

So the الـ on الشارع is important.

Literally, في usually means in. But with streets, English often prefers on:

• في هذا الشارع = on this street

So the Arabic is normal, and the best English translation depends on natural English usage.

In normal Arabic writing, short vowels are usually omitted. So learners often see the sentence written without the full endings.

A fully vocalized version would look like this:

اشْتَرَتْ أُمِّي هَدِيَّةً مُخْتَلِفَةً مِنَ الْمَتْجَرِ الَّذِي فِي هَذَا الشَّارِعِ

Those final vowels show grammatical case, but in everyday printed Arabic they are usually left out unless the text is for learners, children, or precise recitation.