Na manta tabarau na a gida, shi ya sa ban karanta jarida sosai ba.

They are two different na words doing two different jobs.

• The first Na is the 1st person singular subject marker in the completive/perfective pattern: Na manta = I forgot / I have forgotten.
• The second na is the possessive meaning my: tabarau na = my glasses.

So even though they look the same in writing, they are not the same grammatical item.

In Hausa, possessives usually come after the noun, not before it.

So the pattern is:

• tabarau na = my glasses
• gida na = my house/home
• littafi na = my book

A useful habit is to think of Hausa possession as noun + possessor.

Its basic meaning is forget, but in a sentence like this it naturally gives the idea of forgetting something somewhere, which English often expresses as leave behind.

So:

• Na manta tabarau na a gida can be understood as I forgot my glasses at home
• and in natural English that often becomes I left my glasses at home

So the Hausa verb is still manta, but the translation may shift depending on context.

a gida means at home or in the house/home.

• a is a common locative preposition, often meaning at, in, or sometimes to, depending on context.
• gida means house or home.

So a gida is a very common expression meaning at home.

shi ya sa is a very common Hausa expression meaning that is why, so, or that is what caused it.

You can think of it roughly like this:

• shi = it/that one
• ya sa = caused / made

But as a learner, the most helpful thing is to treat shi ya sa as a set phrase meaning:

• that’s why
• so
• for that reason

In this sentence, it connects the first idea to the second: I forgot my glasses at home; that’s why I didn’t read the newspaper much.

Not exactly.

shi ya sa is usually closer to:

• that’s why
• so
• for that reason

It points forward from a cause to a result.

English comparison:

• I forgot my glasses, so I didn’t read much.
• I didn’t read much because I forgot my glasses.

Those are related ideas, but the structure is different.
So shi ya sa is usually more like so / that’s why than plain because.

This is a normal Hausa negative pattern.

In the completive/perfective negative, Hausa often uses:

• a negative subject form before the verb
• and another ba at the end of the clause

So:

• Na karanta = I read / I have read
• Ban karanta ba = I did not read / I have not read

In your sentence:

• ban = the negative I form here
• final ba closes the negation

So ban karanta jarida sosai ba means I didn’t read the newspaper much.

This is the completive/perfective pattern in Hausa.

In many everyday contexts, it is translated as:

• simple past: I forgot, I didn’t read
• or sometimes present perfect: I have forgotten, I haven’t read

The exact English tense depends on context.

So:

• Na manta = I forgot / I have forgotten
• Ban karanta ... ba = I didn’t read / I haven’t read

For this sentence, simple past English is the most natural translation.

Hausa does not usually use articles the way English does. There is no direct everyday equivalent of the or a/an in many sentences.

So jarida can mean:

• a newspaper
• the newspaper

Context tells you which one is meant.

In this sentence, the meaning is understood from the situation, so jarida works without any separate word for the.

sosai usually means very, very much, or a lot, depending on what it is modifying.

With verbs, it often comes after the verb phrase or object:

• ya yi kyau sosai = it is very good
• na gode sosai = thank you very much
• karanta jarida sosai = read the newspaper a lot / very much

So in your sentence, sosai strengthens the idea of reading: ban karanta jarida sosai ba = I didn’t read the newspaper much / very much.

Yes. karanta normally takes a direct object.

So:

• karanta jarida = read the newspaper
• karanta littafi = read a book
• karanta wasiƙa = read a letter

No preposition is needed there.
That is why jarida comes directly after karanta.

Yes, absolutely.

You could write it as:

• Na manta tabarau na a gida. Shi ya sa ban karanta jarida sosai ba.

That would mean the same thing. The comma in your original sentence simply links two closely related clauses.