This is the 2404th most frequent Portuguese word.
afirmam
"Afirmam" means "they affirm" or "they state."
The word 'afirmam' is used here as the third person plural (eles/elas) present form of the verb 'afirmar', meaning 'to assert' or 'to affirm', indicating that experts are asserting this opinion.
Especialistas afirmam que a prática diária é crucial para o aprendizado.
Experts affirm that daily practice is crucial for learning.
In this sentence, 'afirmam' conveys that studies (as representations of collected data or conclusions) are declaring a particular finding or assertion.
Os estudos afirmam que o consumo consciente ajuda o meio ambiente.
Studies affirm that conscious consumption helps the environment.
Here, 'afirmam' introduces indirect speech to relay the claim of unidentified subjects, showing that the assertion is made by them.