Turn this distinction into automatic recall
Falando teaches Brazilian Portuguese through grammar, vocabulary, audio, examples, and spaced review, so confusing pairs stop feeling like guesses.
Quick answer
Inferir draws a conclusion from evidence or context; deduzir foregrounds logical derivation from premises and also means subtract.
A reliable test is to identify the job of the word before translating from English.
What each word does
inferir
to infer
Use inferir for drawing a conclusion from evidence, context, or observed signs.
deduzir
to deduce or subtract
Use deduzir for reaching a conclusion through reasoning from premises, or taking an amount away.
How to choose
- inferir: Choose inferir if the sentence points to drawing a conclusion from evidence, context, or observed signs.
- deduzir: Choose deduzir if the sentence points to reaching a conclusion through reasoning from premises, or taking an amount away.
Examples
Pelos dados, podemos inferir uma tendência de queda.
From the data, we can infer a downward trend.
Da regra geral, deduzimos a solução deste caso.
From the general rule, we deduced the solution to this case.
Common trap
In ordinary reasoning the verbs overlap. In accounting, only deduzir naturally means subtract an amount.
Practice it in context
Pick one sentence from your real life and write it twice: once with inferir, then once with deduzir. If both versions feel possible, name the meaning shift.
Turn this distinction into automatic recall
Falando teaches Brazilian Portuguese through grammar, vocabulary, audio, examples, and spaced review, so confusing pairs stop feeling like guesses.