"I will think about what to do."

Translation: Eu pensarei sobre o que fazer.

[olimo]

Is "Eu vou pensar em o que fazer." wrong? It was in a multiple-choice question, I checked it as a second option and got it wrong.

[mrksngl]

It's wrong because 'em+o' must be contracted to 'no'. "Eu pensarei no que fazer" is marked right.

[fabsuniverse]

What's wrong with "achar" here? Anyone know? It's been used as think previously

[Fluencyhour]

Could someone explain to me the purpose of putting "o" before the infinitive verb "fazer", please?? :-D Obrigado

[Paulenrique]

"o" isn't connected to the verb fazer, but is the transation of "what" = o que.

[Fluencyhour]

ah, ok, ok, entendi. Obrigado amigo.

[Tulletilsynet]

When do you use "em" and when "sobre" after "pensar"?

[Paulenrique]

They are interchangeable most of the time, but "Pensar em" is more common.