were shaking, were trembling
Colocava as mãos nos bolsos porque tremiam.
He put his hands in his pockets because they were trembling.
— Pacto de Sangue (1944)
A música tocou tão alto que até as paredes tremiam.
The music was so loud that even the walls were shaking.
O Tom percebeu que as mãos da Mary tremiam.
Tom noticed that Mary's hands were trembling.
Her legs were trembling with fear.