اذا في مطر، لا تروح عالحديقة.

إذا means if. In Levantine, it is usually pronounced iza.

In this sentence, it introduces a condition:

• إذا في مطر = if there is rain / if it’s raining

So the whole sentence has the structure:

• If X, don’t do Y

Yes, في can mean in, but in Levantine it also very commonly means there is / there are.

So here:

• في مطر = there is rain

This is a very common dialect feature. A learner might first think في مطر means in rain, but here it is existential:

• في ناس = there are people
• في مشكلة = there is a problem
• في وقت = there is time

So إذا في مطر literally means if there is rain.

It literally means if there is rain, but in natural English the best translation is often if it’s raining.

This is very normal in Levantine. Arabic often expresses weather this way:

• في شوب = it’s hot / there is heat
• في برد = it’s cold / there is cold
• في مطر = it’s raining / there is rain

So although the wording is different from English, the meaning is completely natural.

Because لا is used here for a negative command: don’t go.

• لا تروح = don’t go

In Levantine, ما is usually used to negate statements, not commands:

• ما بروح = I’m not going
• ما راح = he didn’t go

But for telling someone not to do something, لا is the normal choice:

• لا تحكي = don’t speak
• لا تنسى = don’t forget
• لا تروح = don’t go

So this is the standard way to make a prohibition.

تروح here is addressing one male person: you go / go.

In this sentence:

• لا تروح = don’t go (to one man or boy)

If you were talking to a woman, you would usually say:

• لا تروحي

If you were talking to more than one person:

• لا تروحوا

So the forms are:

• لا تروح = don’t go (masculine singular)
• لا تروحي = don’t go (feminine singular)
• لا تروحوا = don’t go (plural)

عالحديقة is a contraction of:

• على = on / to
• الحديقة = the park / the garden

Together:

• على الحديقة → عالحديقة

In Levantine speech, على + الـ often contracts to عالـ.

Examples:

• عالبيت = to the house / home
• عالمدرسة = to the school
• عالجامعة = to the university

So عالحديقة means to the park/garden.

This is one of those things where Arabic and English do not match word-for-word.

Although على often means on, in Levantine it is also commonly used with verbs of going to mean to a place:

• راح عالسوق = he went to the market
• تعال عالبيت = come to the house / come home
• تروح عالحديقة = go to the park

So in this sentence, على is simply the normal preposition used with go.

Literally, حديقة often means garden. But in everyday use, it can also refer to a park, especially a public garden/park.

So depending on context, الحديقة could be understood as:

• the garden
• the park

If the meaning shown to the learner is park, that is perfectly natural.

This is Levantine dialect, not formal Modern Standard Arabic.

A few clues:

• في used as there is
• تروح in everyday spoken style
• عالحديقة as a spoken contraction

A more formal MSA-style version might look more like:

• إذا كان هناك مطر، فلا تذهب إلى الحديقة

But that would sound much more formal and less conversational.

Yes. إذا كان في مطر is also possible and means the same thing:

• إذا في مطر
• إذا كان في مطر

The version without كان is very common and natural in spoken Levantine because it is shorter and more conversational.

So:

• إذا في مطر، لا تروح عالحديقة
• إذا كان في مطر، لا تروح عالحديقة

Both are fine, but the first one feels especially natural in everyday speech.

A natural Levantine-style pronunciation could be written roughly as:

• iza fii matar, la troo7 ʿal-7adii'a

A few pronunciation notes:

• إذا → iza
• في → fii
• مطر → matar
• تروح → troo7
  The final ح is a strong breathy h sound from the throat.
• عالحديقة → ʿal-7adii'a or similar, depending on the speaker

Different countries and speakers will pronounce it a bit differently, but this gives a good general Levantine feel.

This order is very normal:

• إذا في مطر، لا تروح عالحديقة.

It follows a common pattern:

• condition + result

You may also hear slight variations in speech, but this version is straightforward and natural. The key idea is that the إذا clause comes first, and then the command comes after it.

So for learners, this is a good pattern to remember:

• إذا + condition, لا + verb

For example:

• إذا تعبان، لا تشتغل = If you’re tired, don’t work.
• إذا في أزمة، لا تطلع = If there’s a problem, don’t go out.