اذا نسيتي النظارات بالبيت، ممكن ارجع واخدلك ياهم.

Because the speaker is talking to one woman.

In Levantine past tense, نسيتي means you forgot addressed to a feminine singular person.

Common forms here are:

• نسيت = you forgot, to a man
• نسيتي = you forgot, to a woman
• نسيتوا = you forgot, to a group

So this sentence is specifically addressed to a female listener.

Because in Levantine, إذا often introduces a real condition, and the verb after it can be in the past when the meaning is something like if you forgot / if it turns out you forgot.

So اذا نسيتي النظارات بالبيت means something like:

• if you forgot the glasses at home
• if you left the glasses at home

If you wanted a more habitual or future sense, you might hear something like إذا بتنسي... in other contexts. But here the past is very natural because the forgetting is treated as something that may already have happened.

بالبيت means at home or in the house.

It is made of:

• بـ = in / at
• البيت = the house / the home

So:

• بالبيت = in the house / at home

In Levantine, using بـ with places is extremely common.
You could also hear في البيت, but بالبيت is very natural and everyday.

Because glasses in Arabic is also commonly treated as a plural noun.

• نظارة = one lens / one pair? depending on context, but as a practical everyday word, the singular exists
• نظارات = glasses / eyeglasses

So النظارات simply means the glasses.

Just like in English, this item is often talked about in the plural in everyday speech.

ممكن literally means possible, but in everyday Levantine it is very often used to express:

• can
• could
• might be able to

So ممكن ارجع is basically I can go back or I could go back.

It is a very common colloquial way to talk about possibility or willingness, without using a separate verb like can in English.

Because Arabic usually does not need an explicit subject pronoun when the verb already shows who is doing the action.

Here:

• ارجع = I go back / I return

The I is understood from the verb form itself.

So adding أنا is possible for emphasis, but it is not necessary.

Because the sentence expresses a sequence of actions:

• ارجع = go back / return
• اخدلك ياهم = get them for you / take them for you

So the idea is:

• I can go back and get them for you

This is very natural in Levantine: one verb gives the motion, and the next gives the action done after that motion.

Also, ارجع is important here because the speaker is already away from home and would need to go back.

Because this is colloquial Levantine, not Modern Standard Arabic.

In everyday speech, the verb أخذ is commonly pronounced and written in dialect as اخد.

So:

• MSA-style form: آخذ
• Levantine colloquial: اخد

A learner will hear colloquial forms like this all the time in spoken Arabic.

-لك means for you or to you.

So:

• اخد = I get / I take
• اخدلك = I get for you / I take for you

This is an attached pronoun, and it shows the action is being done for the listener.

Since the listener here is feminine earlier in the sentence, some learners expect -ِلك pronunciation, and in actual speech the vowel can vary a bit by region. But the meaning is still for you.

ياهم means them here.

This is a colloquial object-pronoun form related to إياهم. In Levantine, when one object pronoun is already attached to the verb, another object is often expressed separately with forms like:

• ياها = it
• ياهم = them

So here:

• اخدلك = I get for you
• ياهم = them

Together: اخدلك ياهم = I’ll get them for you

Why not اخدهم?
Because اخدهم would mean I take/get them, but once -لك is already attached, Levantine commonly uses a separate object form like ياهم for the direct object.

This pattern is very common in spoken Arabic.

It refers back to النظارات.

So the structure is:

• if you forgot the glasses at home,
• I can go back and get them for you

Even though النظارات appeared earlier, Arabic still uses ياهم in the second part to refer back to it, just like English uses them.

In this sentence, the natural English sense is get them.

Literally, أخد is often take, but depending on context it can sound like:

• take
• bring
• go get

Here the speaker means they will go back home, pick up the glasses, and bring them along. So in natural English, get them for you is the best match.

You would change نسيتي to نسيت.

So:

• to a woman: اذا نسيتي النظارات بالبيت، ممكن ارجع واخدلك ياهم.
• to a man: اذا نسيت النظارات بالبيت، ممكن ارجع واخدلك ياهم.

The rest can stay the same in this sentence.

Yes. That is a very natural way to understand it.

Even though نسيتي literally comes from forgot, in context English often says:

• you forgot your glasses at home
• you left your glasses at home

Both capture the intended meaning well. The Arabic is about forgetting them and therefore leaving them behind at home.