Magsumite ng orihinal na sertipikong medikal ayon sa rekisito.

Magsumite means to submit / submit.

In this sentence, it works as an instruction or command, especially in formal written Filipino such as notices, forms, and office directions.

Grammatically:

• mag- is a common verb prefix
• sumite is the base
• together, magsumite forms an actor-focus verb

So the sentence is telling someone to carry out the action of submitting something.

Because ng marks the object of the verb here: the thing being submitted.

So in:

• Magsumite ng orihinal na sertipikong medikal

the phrase:

• ng orihinal na sertipikong medikal

means an original medical certificate, which is the thing you must submit.

This is very common with actor-focus verbs like magsumite.

Here, ng is correct because it marks the direct object.

Use ng when you are marking:

• the object of a verb
• possession
• some modifiers

Use nang for other functions, such as:

• adverbial meaning similar to in a ... way
• certain conjunction-like uses
• repeated or ongoing action in some patterns

Since orihinal na sertipikong medikal is the thing being submitted, the correct form is ng.

Both are forms of the linker, which connects words smoothly.

In this phrase:

• orihinal na sertipikong medikal

the linker appears twice:

• orihinal na sertipiko
• sertipikong medikal

Why two forms?

• Use na after a word ending in most consonants: orihinal na
• Use -ng after a word ending in a vowel: sertipiko → sertipikong

So the linkers are not adding separate meaning; they are mainly connecting modifiers and nouns in a grammatical way.

Because Filipino often allows the descriptive word to come after the noun, especially in phrases connected by a linker.

So:

• sertipikong medikal = medical certificate

This is a normal structure in Filipino. English usually puts the modifier first, but Filipino often does not.

A rough literal order is:

• certificate medical

but the natural English meaning is still medical certificate.

Yes. In this kind of administrative or official sentence, orihinal usually means the original document itself.

So it often implies:

• not just a copy
• not just a scan
• not a photocopy unless the office specifically allows one

That is a very common practical meaning in government, school, and HR contexts.

Ayon sa means:

• according to
• in accordance with
• based on
• in some contexts, as required by

In this sentence, it means the submission should be done in accordance with the requirement(s).

It is a fairly formal expression and is very common in official Filipino.

Rekisito means requirement. It is a borrowed word, ultimately from Spanish.

Why singular here?

• Sometimes Filipino uses a singular abstract noun in formal writing even when English might prefer a plural idea.
• So ayon sa rekisito can mean something like according to the requirement or as required.

If you want to make the plural explicit, you could say:

• ayon sa mga rekisito = according to the requirements

In real-life usage, many speakers would probably find mga rekisito clearer if more than one requirement is meant.

Yes, but the grammar shifts slightly.

• Magsumite ng orihinal na sertipikong medikal
  Focuses on the doer performing the act of submission.

• Isumite ang orihinal na sertipikong medikal
  Focuses more directly on the item being submitted.

Both can be translated as Submit the original medical certificate, but they use different Filipino voice/focus patterns.

A learner should get used to both:

• magsumite ng ...
• isumite ang ...

They are both common in formal instructions.

Yes. It sounds formal, official, and bureaucratic.

You might see this in:

• school instructions
• government forms
• HR notices
• clinic or hospital requirements

In more everyday speech, people might use a less formal or more mixed expression, such as:

• Magpasa ng original na medical certificate
• Mag-submit ng original na medical certificate

That kind of Taglish is very common in daily life, but the sentence you were given is a more formal Filipino version.

Not in the same way English uses articles.

Filipino does not require direct equivalents of a or the in every noun phrase. So:

• ng orihinal na sertipikong medikal

can be understood from context as:

• an original medical certificate
• or sometimes the original medical certificate

English forces you to choose more clearly, but Filipino often leaves that to context.

That is why translating word-for-word can feel a little incomplete unless you already know the situation.