Ingatan mo ang leeg mo kapag malamig ang hangin.

Ingatan means take care of, protect, or look after something.

It comes from ingat, which is connected to the idea of care and caution. In this sentence, Ingatan mo ang leeg mo means Protect your neck or Take care of your neck.

A helpful contrast is:

• Mag-ingat ka = Be careful
• Ingatan mo ang leeg mo = Be careful with / protect your neck

So ingatan is directed at a specific thing: in this case, ang leeg mo.

They are related, but they are not the same.

• Mag-ingat ka means Be careful
• Ingatan mo ang leeg mo means Take care of your neck or Protect your neck

So:

• Mag-ingat ka focuses on the person being careful
• Ingatan mo... focuses on the thing being protected

That is why ingatan works well here: the sentence is specifically telling someone to protect their neck.

Because the two mo words are doing different jobs.

• The first mo means you as the one doing the action
  
  • Ingatan mo = You should protect / Take care of
• The second mo shows possession
  
  • leeg mo = your neck

So the structure is basically:

• Ingatan mo = Protect it, you
• ang leeg mo = your neck

Even though both are spelled mo, one marks the doer, and the other means your.

Because ang leeg mo is the thing being focused on by the verb ingatan.

In Filipino, the form of the verb often works together with markers like ang and ng/mo. Here:

• ingatan is an object-focused form
• so the thing being protected is marked with ang

That is why you get:

• Ingatan mo ang leeg mo

Very roughly:

• mo = the person doing the protecting
• ang leeg mo = the thing being protected

This is different from English, where we usually do not mark nouns this way.

Because in Filipino, short possessive pronouns like ko, mo, and niya normally come after the noun.

So:

• leeg mo = your neck
• kamay ko = my hand
• bahay niya = his/her house

This is the normal pattern.

You can also use the fuller form iyong leeg, but leeg mo is more common and natural in everyday speech.

Kapag means when or whenever.

In this sentence:

• kapag malamig ang hangin = when the wind is cold

A few comparisons:

• kapag = when / whenever
• kung = usually if / whether
• pag = a shorter, more conversational form of kapag

So kapag malamig ang hangin is a natural way to say when the wind is cold.

You will also often hear:

• pag malamig ang hangin

That means the same thing, just less formal.

Because those mean different things.

• malamig ang hangin = the wind is cold
• ang malamig na hangin = the cold wind

In your sentence, malamig ang hangin is a full clause with:

• malamig = predicate adjective
• ang hangin = the thing being described

So it is describing a condition: when the wind is cold.

If you said ang malamig na hangin, that would just be a noun phrase, not a complete idea by itself.

Yes, you can say Ang hangin ay malamig, but Malamig ang hangin is very normal and natural.

Filipino often puts the predicate first, especially in simple descriptive sentences.

So:

• Malamig ang hangin = literally something like Cold is the wind
• natural English: The wind is cold

And yes:

• Ang hangin ay malamig

is also grammatical, but it can sound a bit more formal, deliberate, or textbook-like.

In everyday speech, Malamig ang hangin is very common.

It can mean both, depending on context.

• hangin = air
• hangin = wind

In this sentence, wind is the best translation, because the idea is about cold moving air outdoors. So kapag malamig ang hangin is naturally understood as when the wind is cold or when the air is cold.

Both ideas are close, but wind fits most naturally here.

It is usually understood as advice or a gentle instruction, not necessarily a harsh command.

Ingatan mo ang leeg mo can sound like:

• Protect your neck
• Take care of your neck
• Make sure you keep your neck warm

The tone depends a lot on context and voice. A parent, friend, or older relative might say this in a caring way.

So grammatically it is an imperative, but in real-life use it often feels like warm, practical advice.

For politeness, you can add po:

• Ingatan mo po ang leeg mo kapag malamig ang hangin.

If you are speaking to several people, use ninyo instead of mo:

• Ingatan ninyo ang leeg ninyo kapag malamig ang hangin.

If you want both plural and polite, that same ninyo sentence already works politely in many situations.

So:

• mo = singular you
• ninyo = plural you, or polite you depending on context