Non dobbiamo truccare il risultato.

In Italian, non normally goes directly before the conjugated verb to make the sentence negative.

So:

• dobbiamo = we must / we have to
• non dobbiamo = we must not / we do not have to, depending on context

In this sentence, non dobbiamo truccare il risultato, it means we must not rig/fix/manipulate the result.

This is the standard position for negation in Italian:

• Non capisco = I don’t understand
• Non voglio andare = I don’t want to go
• Non dobbiamo truccare il risultato = We must not manipulate the result

Dobbiamo is the 1st person plural form of dovere, which means to have to, must, or to be obliged to.

So:

• devo = I must
• devi = you must
• deve = he/she/it must
• dobbiamo = we must
• dovete = you all must
• devono = they must

In this sentence, dobbiamo tells you that the subject is we, even though Italian often leaves the subject pronoun unstated.

So (noi) dobbiamo = we must.

Italian often drops subject pronouns when the verb already makes the subject clear. This is called being a pro-drop language.

Since dobbiamo can only mean we must, there is no need to say noi unless you want emphasis or contrast.

So both are possible:

• Non dobbiamo truccare il risultato. = We must not rig the result.
• Noi non dobbiamo truccare il risultato. = We must not rig the result.
  (This sounds more emphatic, as if contrasting we with someone else.)

Because after a modal verb like dovere (must / have to), Italian usually uses the infinitive of the main verb.

So the structure is:

• dovere + infinitive

Examples:

• Devo studiare = I must study
• Dobbiamo partire = We must leave
• Non dobbiamo truccare il risultato = We must not manipulate the result

Here:

• dobbiamo = the conjugated modal verb
• truccare = the main action, left in the infinitive

Yes, truccare often literally means to put makeup on someone or to make up. For example:

• Truccarsi = to put on makeup
• Truccare un attore = to do an actor’s makeup

But truccare also has a very common figurative meaning: to rig, to fix, to tamper with, or to manipulate dishonestly.

So in this sentence, truccare il risultato means something like:

• to rig the result
• to falsify the result
• to manipulate the outcome

This is the meaning used in contexts like sports, elections, contests, or statistics.

Italian uses the definite article more often than English does.

Here, il risultato means the result. In many cases, Italian needs the article where English might or might not use one depending on style.

So:

• risultato = result
• il risultato = the result

In this sentence, we are talking about a specific result or outcome, so il is natural.

Also, Italian usually does not omit the article in this kind of phrase.

Grammatically, non dobbiamo can sometimes be ambiguous and may be understood in different ways depending on context:

• we must not
• we don’t have to

However, with a verb like truccare and in a normal ethical context, the most natural interpretation is:

• we must not manipulate/rig the result

If you wanted to say clearly we don’t need to manipulate the result, Italian might use:

• Non c’è bisogno di truccare il risultato
• Non dobbiamo per forza truccare il risultato
  depending on the intended nuance

So in this sentence, the likely meaning is a prohibition, not absence of necessity.

Yes, but the given order is the most neutral and natural one:

• Non dobbiamo truccare il risultato.

Italian word order is fairly flexible, but changes usually add emphasis or sound marked.

For example:

• Il risultato non dobbiamo truccarlo.
  This is possible, but more emphatic or contrastive.
• Non il risultato dobbiamo truccare...
  This sounds unusual unless part of a special context.

For everyday Italian, the original sentence is the standard structure:

• non + conjugated verb + infinitive + object

Yes. Depending on context, Italians might also use verbs like:

• manipolare = to manipulate
• falsificare = to falsify
• alterare = to alter/tamper with
• pilotare = to steer/fix behind the scenes
• truccare = to rig/fix

But truccare il risultato is very idiomatic and natural when talking about dishonestly changing or fixing an outcome.

So it is a good phrase to learn as a set expression.

You could move the object for emphasis, although the sentence becomes less neutral.

For example:

• Il risultato non dobbiamo truccarlo.

Here:

• il risultato is fronted for emphasis
• -lo repeats il risultato as a direct object pronoun

This kind of structure is more advanced and more marked stylistically. For most learners, the basic sentence is best:

• Non dobbiamo truccare il risultato.

That is the clearest and most natural default version.