Takin yana da amfani.

A simple breakdown is:

• takin = the fertilizer / the manure
• yana = a marker agreeing with a masculine singular subject
• da = with / having
• amfani = use, benefit, usefulness

So the literal sense is The fertilizer has usefulness/benefit, and the natural English meaning is The fertilizer is useful.

Hausa does not always use a single separate word exactly like English is.

In this sentence, the idea is expressed through the pattern yana da .... That structure literally means something like it has ..., but very often it is translated into natural English as it is ..., especially when the last word names a quality.

So:

• yana da amfani = literally has benefit/use
• natural English = is useful

This is very normal in Hausa. A full noun is often followed by a matching subject marker.

So:

• takin tells you what we are talking about
• yana agrees with that noun and helps build the clause

English usually does not repeat the subject this way, but Hausa often does.

Because taki(n) is treated as a masculine singular noun in Hausa.

Hausa agreement is based on grammatical gender, not biological sex. So even inanimate things can be grammatically masculine or feminine.

• masculine singular: yana
• feminine singular: tana

Since taki(n) takes masculine agreement, yana is the correct form here.

da often means with, but in this kind of sentence it also helps express have / has.

So:

• yana da anfani/amfani = it has benefit/use

That is why the whole sentence comes out naturally in English as It is useful.

It is a noun.

amfani means use, benefit, usefulness. Hausa often uses a noun in places where English would prefer an adjective.

So instead of saying something exactly like useful, Hausa says something closer to:

• has usefulness
• has benefit

That is why yana da anfani/amfani means is useful.

The -n is a determiner ending often used when the noun is specific, somewhat like English the.

So:

• taki = fertilizer / manure
• takin = often the fertilizer or that fertilizer

It is not a perfect one-to-one match with English the, but that is a good beginner way to understand it.

Yes.

Depending on context, taki can refer to:

• manure
• fertilizer
• sometimes compost-like fertilizer

So the exact English word depends on the situation. In many learning examples, fertilizer is the most natural translation.

Usually it sounds like a present statement or a general truth.

So Takin yana da amfani can mean:

• The fertilizer is useful
• or more generally Fertilizer is useful

Context tells you whether the speaker means a specific fertilizer or is making a broad statement.

You can say:

Takin ba shi da anfani/amfani.

That means The fertilizer is not useful.

Notice that with da-sentences, the negative pattern is not yana da but ba shi da for a masculine singular subject.

So:

• positive: takin yana da anfani/amfani
• negative: takin ba shi da anfani/amfani

You can say:

Shin takin yana da anfani/amfani?

That means Is the fertilizer useful?

In everyday speech, Hausa can also ask this with intonation alone:

Takin yana da anfani/amfani?

Adding shin just makes the question more clearly marked.