think about
Ele não parava de pensar no homem que ele havia visto na janela.
He couldn't stop thinking about the man he had seen at the window.
Você deveria pensar no impacto de suas palavras antes de comentar.
You should think about the impact of your words before commenting.
Eu preciso pensar no que precisa ser feito.
I need to think about what needs to be done.
Por que ler esta sentença me faz pensar no Obama?
Why does reading this sentence make me think of Obama?
Só vale a pena pensar no nosso dever e na verdade.
It's only worth thinking about our duty and the truth.
— Solaris (1972)
Não quero pensar no que poderia ter acontecido.
I don't want to think about what could have happened.