Suriin ang radiator.

Suriin comes from the base word suri, which means examination, inspection, or analysis. As a verb, suriin means to examine, to inspect, or to check carefully.

So in Suriin ang radiator, suriin is the action word meaning inspect/check the radiator.

The ending -in is a very common Filipino verb marker. In this case, it makes the verb focus on the thing being acted on.

• suri = inspection / examine
• suriin = examine something / inspect something

This is often called object focus or patient focus. The important thing in the sentence is the thing being examined, which is ang radiator.

Yes. It is an imperative sentence, meaning it gives an instruction or command.

It is similar to English:

• Inspect the radiator
• Check the radiator

Filipino often uses the plain verb form for commands, so suriin here sounds natural as an instruction.

In this sentence, ang marks the noun phrase that is in focus, which here is radiator.

So:

• ang radiator = the radiator

For English speakers, ang is often easiest to think of as a marker that points to the main noun in the sentence. It is not always exactly the same as the, but in this sentence the radiator is a good practical translation.

Because suriin is an object-focus verb, the thing being inspected is marked by ang.

So:

• Suriin ang radiator = Inspect the radiator

If the verb focus changed, the marker could change too. Filipino verb focus and noun markers work together, so ang here matches the form suriin.

It is a borrowed word, ultimately from English. Filipino uses many borrowed words, especially for technical, mechanical, and modern objects.

So radiator is perfectly normal, especially in practical contexts like car repair, manuals, or instructions.

In everyday speech, borrowed words are very common in Filipino.

A helpful approximation is:

su-ri-in

There are three vowel beats there:

• su
• ri
• in

Because of the spelling, many learners may want to compress it too much, but it is usually pronounced clearly enough that you can hear the sequence of vowels.

Verb-first word order is very common in Filipino.

So a natural basic pattern is:

• Verb + ang-marked noun

That gives:

• Suriin ang radiator

You may sometimes see other word orders for emphasis or style, but for a straightforward instruction, verb first is the most natural.

Usually, yes.

• tingnan = look at, see, check
• suriin = inspect, examine, analyze more carefully

So if someone says Suriin ang radiator, it suggests more than just glancing at it. It implies a more deliberate check, possibly for a problem, damage, or condition.

You can add polite particles or polite wording. For example:

• Pakisuri ang radiator.
• Pakisuriin ang radiator.

Paki- adds a polite please sense.

You could also say:

• Pakiusap, suriin ang radiator.

But in many practical settings, short commands like Suriin ang radiator are normal, especially in manuals, instructions, or workplace communication.

In most contexts, ang radiator will be understood as the radiator that is relevant in the situation.

For example, if you are talking about a car, it naturally means that car's radiator. Filipino often relies heavily on context, so the sentence does not have to spell out every detail.

Yes, in casual modern Filipino, especially in conversation, people may say:

• I-check ang radiator

This is a common mixed English-Filipino form. However, suriin ang radiator is more fully Filipino and can sound more formal or standard.

So:

• Suriin ang radiator = more standard / formal Filipino
• I-check ang radiator = very common in casual speech

It would commonly be used in situations like:

• car maintenance
• repair instructions
• a mechanic giving directions
• a manual or checklist
• troubleshooting overheating problems

Because suriin sounds a bit formal and technical, the whole sentence fits especially well in instructional or professional contexts.