Non ricordo assolutamente niente.

Yes, it is a kind of double negative by English standards, but in Italian that is normal. Italian often uses negative concord, meaning more than one negative word appears in the same sentence to express just one negation.

So:

• Non ricordo niente = I don’t remember anything / I remember nothing
• Non vedo nessuno = I don’t see anyone
• Non ho mai tempo = I never have time

In standard Italian, when niente comes after the verb, you normally keep non before the verb.

Ricordo is the present indicative, first person singular, from ricordare.

So literally it is:

• (io) ricordo = I remember

With non, it becomes:

• non ricordo = I don’t remember

Even though it is present tense, in English it can sometimes sound natural as I can’t remember, depending on context.

Italian often drops subject pronouns when they are not needed, because the verb ending already shows who the subject is.

Here, ricordo clearly means I remember, so io is unnecessary.

You could say:

• Io non ricordo assolutamente niente

but that would usually add emphasis, as if you were stressing I.

Here assolutamente is an intensifier. It strengthens the negative idea and means something like:

• absolutely
• completely
• totally

So Non ricordo assolutamente niente is stronger than just Non ricordo niente.

It gives the sense of I absolutely don’t remember anything at all.

It is placed there because it naturally intensifies the whole negative idea, especially the idea of nothing at all.

The sentence structure is very natural:

• Non ricordo assolutamente niente

You may also hear other placements in speech, but this order is very common and idiomatic. It sounds smooth and emphasizes the total lack of memory.

Yes. That is also very common.

Italian has two related ways to express to remember:

• ricordare qualcosa = to remember something
• ricordarsi di qualcosa = to remember something

So you can say:

• Non ricordo niente
• Non mi ricordo di niente

And many speakers also say:

• Non mi ricordo niente

In everyday spoken Italian, ricordare and ricordarsi are often both used, though the fully traditional pattern with the reflexive form is ricordarsi di.

Yes. Nulla and niente can both mean nothing in this kind of sentence.

So these are both correct:

• Non ricordo niente
• Non ricordo nulla

In many everyday situations, niente is more common in speech. Nulla can sound a bit more formal or literary in some contexts, though it is still perfectly normal Italian.

Here niente is functioning more like an indefinite pronoun, meaning nothing.

It stands for not anything, rather than naming a concrete object.

So in:

• Non ricordo niente

niente is the thing not remembered: nothing.

No, not in standard Italian.

If niente comes after the verb, you need non before the verb:

• Non ricordo niente ✔
• Ricordo niente ✘

Italian normally requires both parts in this structure.

It can correspond to both in English.

Italian uses one structure here, but English has two natural ways to say it:

• I don’t remember anything at all
• I remember absolutely nothing

The Italian sentence is slightly emphatic because of assolutamente, so I remember absolutely nothing is often a very good match in tone.

In normal everyday Italian, this sentence is best as:

• Non ricordo niente

Putting niente before the verb would sound unusual, marked, or literary. Learners should stick with the standard order:

• non + verb + niente/nulla

The basic meaning is the same, but the second one is stronger.

• Non ricordo niente = I don’t remember anything
• Non ricordo assolutamente niente = I absolutely don’t remember anything / I remember absolutely nothing

So assolutamente adds emphasis and makes the statement sound more forceful.

Yes, very natural.

A native speaker could easily say:

• Non ricordo niente
• Non ricordo assolutamente niente
• Non mi ricordo niente
• Non mi ricordo assolutamente niente

All of these are common, with small differences in style and emphasis. The sentence you have is completely normal and idiomatic.