قبل يوم الامتحان لازم ادرس بالبيت.

Here قبل means before.

So قبل يوم الامتحان means before the exam day or before exam day.

A useful note: قبل is followed by a noun or time phrase here, not a full verb clause.

Not necessarily.

Literally, قبل يوم الامتحان means before the day of the exam. That can sound a bit broader, like sometime before exam day.

If you want to say exactly one day before the exam, Levantine more naturally says:

قبل الامتحان بيوم

That literally means before the exam by a day.

Because this is an idafa structure, often called a noun-noun construction.

يوم الامتحان = the day of the exam / exam day

In this structure:

• the first noun is يوم
• the second noun is الامتحان

When the whole phrase is definite, Arabic usually puts ال only on the second noun, not the first.

So:

• يوم الامتحان = the day of the exam
• اليوم الامتحان is not the normal pattern here

لازم is a very common Levantine word meaning:

• must
• have to
• need to

So:

لازم ادرس = I have to study / I must study

In everyday Levantine, لازم is one of the most common ways to talk about obligation.

This is a very common learner question.

In Levantine, after words like لازم, the verb is usually used without the بـ prefix.

So:

• بدرس = I study / I am studying in a regular present sense
• لازم ادرس = I have to study

The بـ prefix is often associated with the normal present/habitual form, but after لازم, speakers usually use the bare imperfect form.

The subject I is built into the verb ادرس.

In Arabic, verbs often already include the subject, so you do not need a separate word for I.

So:

• ادرس = I study
• أنا ادرس can also be said, but أنا is optional unless you want emphasis

In informal writing, people often write ادرس without the hamza, even though you may also see أدرس.

Because in Levantine, بـ very often means in or at.

So بالبيت means:

• at home
• in the house

It is extremely natural in spoken Levantine.

You can also hear في البيت, and it is understandable, but بالبيت is especially common in everyday speech.

It can mean both, depending on context.

In this sentence, the most natural English meaning is at home:

لازم ادرس بالبيت = I have to study at home

Arabic often uses the house where English prefers home.

So even though البيت literally means the house, the phrase بالبيت commonly means at home.

Yes. Arabic word order is fairly flexible.

For example, these are all natural or understandable:

• قبل يوم الامتحان لازم ادرس بالبيت
• لازم ادرس بالبيت قبل يوم الامتحان
• لازم قبل يوم الامتحان ادرس بالبيت
  (possible, though less straightforward)

Starting with قبل يوم الامتحان puts the time frame first, which gives it emphasis: Before exam day, I have to study at home.

A rough pronunciation would be something like:

'abl yōm l-imteḥān, lāzem idros bil-bēt

A few notes:

• قبل is often pronounced something like 'abl
• الامتحان in speech often sounds like l-imteḥān or l-emteḥān
• بالبيت is often pronounced bil-bēt

Pronunciation varies across Syria, Lebanon, Palestine, and Jordan, so small differences are normal.