Usages of peneirar
Nós temos de peneirar o solo com cautela até descobrirmos os fósseis.
We have to sift the soil with caution until we discover the fossils.
Eles acabaram por peneirar o solo até encontrarem uma moeda.
They ended up sifting the soil until they found a coin.
Elon.io is an online learning platform
We have an entire course teaching Portuguese (Portugal) grammar and vocabulary.