Na yi amfani da beldin mota.

Na marks first-person singular (I) in the perfective/completed form.

So Na yi amfani ... means the speaker is talking about an action they completed. In English, that often comes out as I used ... or sometimes I have used ..., depending on context.

Because yi amfani is a very common Hausa expression meaning to use.

• yi = do / make
• amfani = use / benefit

Together, yi amfani da ... works like the English verb use. This is a common pattern in Hausa: a basic idea is often expressed with yi plus a noun, rather than with one simple verb.

So it is best to learn yi amfani da as a complete chunk meaning to use.

Here, da introduces the thing being used.

So:

• yi amfani da abu = to use something

Even though da often means with in other contexts, in this expression you should not translate it too literally word for word. Just treat yi amfani da as the normal pattern for saying use.

beldin mota is a noun phrase referring to a car belt, which in normal English is a seat belt.

• bel / belt is a loanword from English
• mota means car

Hausa often puts nouns together so that the second noun helps define the first. So ... mota tells you this is the belt associated with a car.

A natural way to understand the phrase is:

• beldin mota = the car belt / seat belt

Hausa usually does not use an indefinite article the way English uses a/an.

That means a Hausa noun can often be translated as:

• a seat belt
• the seat belt

depending on the context.

So even if the Hausa phrase looks more specific than English a seat belt, the translation may still use a because that sounds natural in English.

Yes. With loanwords and everyday typing, spelling can vary.

You may see forms like:

• beldin mota
• bel din mota
• bel ɗin mota
• belt ɗin mota

A couple of reasons for this:

• Hausa has the special letter ɗ, but people often replace it with plain d when typing informally.
• Loanwords from English are not always written in exactly one uniform way in casual text.

So if you see small spelling differences here, that is normal. The important thing is recognizing the phrase as seat belt / car belt.

The sentence follows a very common Hausa pattern:

• Na = subject marker (I)
• yi amfani = verb expression (used)
• da beldin mota = object introduced by da

So the structure is basically:

I + used + seat belt

Even though Hausa builds the verb part differently from English, the overall order is still quite straightforward for an English-speaking learner.

You would normally change the beginning of the sentence:

• Ina amfani da beldin mota. = I am using the seat belt / I use the seat belt.

Compare:

• Na yi amfani da beldin mota. = completed action
• Ina amfani da beldin mota. = ongoing or habitual action

So a big part of learning Hausa is noticing how the little subject markers at the start change the time/aspect of the sentence.