Pirmahan mo ang dokumento gamit ang bolpen na nasa tabi ng kuwaderno.

Pirmahan comes from pirma (signature or sign) plus the suffix -han.

In this sentence, pirmahan means sign it / sign the document with focus on the thing being signed. This is often called object focus or locative/object-oriented verb marking, depending on how it is analyzed.

By contrast, pumirma means to sign with focus on the doer of the action:

• Pumirma ka. = Sign. / You sign.
• Pirmahan mo ang dokumento. = Sign the document.

So pirmahan is used because the sentence is specifically about the document being signed.

Mo is the second-person singular pronoun in its non-ang form. In this sentence, it means you.

So:

• Pirmahan mo = You sign it / Sign it

In commands like this, mo marks the person who performs the action.

Compare:

• Pirmahan ko ang dokumento. = I will sign the document.
• Pirmahan mo ang dokumento. = You sign the document.

Because ang dokumento is the main noun being acted on, and the verb pirmahan is built to highlight that noun.

In Filipino, the marker ang often marks the noun that the verb is oriented toward or focused on. Here, the thing being signed is the document, so it takes ang:

• Pirmahan mo ang dokumento.

If you changed the verb, the noun marking could also change. Filipino verb focus and noun markers work together.

So a simple way to understand this sentence is:

• pirmahan = sign something
• ang dokumento = the thing to be signed

Yes. It is a direct command: Sign the document.

Filipino often uses this structure for imperatives:

• verb + pronoun + ang phrase

So:

• Pirmahan mo ang dokumento. = Sign the document.

It is straightforward and natural, but not especially polite. If you want to sound more polite, you could say:

• Pirmahan mo po ang dokumento.
• Pakipirmahan mo ang dokumento.
• Pakiusap, pirmahan mo ang dokumento.

Gamit ang bolpen means using the pen or with the pen.

Here, gamit functions like using / with, introducing the instrument used to do the action.

So:

• Pirmahan mo ang dokumento gamit ang bolpen...
• Sign the document using the pen...

This tells you what tool should be used.

In this construction, gamit is followed by an ang-marked noun phrase:

• gamit ang bolpen
• gamit ang kutsara
• gamit ang lapis

This is a very common pattern in Filipino and is best learned as a set expression meaning using + noun.

Examples:

• Sumulat gamit ang lapis. = Write using a pencil.
• Buksan mo gamit ang susi. = Open it using the key.

So gamit ang bolpen is completely normal.

Na is a linker. It connects bolpen to the description that follows.

So:

• bolpen na nasa tabi ng kuwaderno
• the pen that is beside the notebook

The part after na describes which pen is meant.

This is similar to English that is or which is, although Filipino usually does not need a separate word exactly like English that in the same way.

Nasa means is in / is at / is on / is located at, depending on context.

It is commonly analyzed as a contraction of na + sa, but learners usually just memorize nasa as a very common location word.

Examples:

• Nasa mesa ang libro. = The book is on the table.
• Nasa bahay siya. = He/She is at home.
• nasa tabi ng kuwaderno = beside the notebook

So here, nasa tells you the location of the pen.

Tabi means side or beside.

So:

• tabi ng kuwaderno literally means the side of the notebook
• in natural English: beside the notebook or next to the notebook

The ng links tabi with the noun that follows:

• tabi ng mesa = beside the table
• tabi ng pinto = beside the door
• tabi ng kuwaderno = beside the notebook

This is a very common Filipino location pattern.

It describes ang bolpen.

So the structure is:

• gamit ang bolpen na nasa tabi ng kuwaderno

This means:

• using the pen that is beside the notebook

It does not describe ang dokumento. It tells you which pen to use.

Yes, Filipino word order is fairly flexible, especially for added phrases like location or instrument phrases.

For example, these are natural:

• Pirmahan mo ang dokumento gamit ang bolpen na nasa tabi ng kuwaderno.
• Gamit ang bolpen na nasa tabi ng kuwaderno, pirmahan mo ang dokumento.

Both mean essentially the same thing. The second one puts more attention on the pen first.

Still, the original sentence is very natural and clear.

No, bolpen is a borrowed word, from English ballpen.

Filipino uses many borrowed words, especially for everyday objects. The spelling is often adapted to Filipino spelling conventions.

Similarly:

• kuwaderno comes from Spanish cuaderno
• dokumento or dokumento is also a borrowed word

So this sentence is very typical of real Filipino, where native and borrowed elements mix naturally.

Both can be understood, but kuwaderno is a standard Filipino word for notebook or exercise book.

Filipino often has both a borrowed/adapted form and a more directly English form in actual usage. Depending on the speaker, you might hear:

• kuwaderno
• notebook

But kuwaderno is a well-established Filipino word and sounds perfectly natural here.

A common way is to add po:

• Pirmahan mo po ang dokumento gamit ang bolpen na nasa tabi ng kuwaderno.

You could also use paki- for a more polite request:

• Pakipirmahan mo ang dokumento gamit ang bolpen na nasa tabi ng kuwaderno.

Or even:

• Pakipirmahan po ang dokumento gamit ang bolpen na nasa tabi ng kuwaderno.

So the original sentence is fine as a plain command, but adding po and/or paki- makes it more polite.

You can get close, but not perfectly.

A rough word-by-word breakdown is:

• Pirmahan = sign
• mo = you
• ang dokumento = the document
• gamit ang bolpen = using the pen
• na nasa tabi ng kuwaderno = that is beside the notebook

A more natural English translation would be:

• Sign the document using the pen beside the notebook.

So the meaning matches well, but the grammar does not line up word for word in every detail.