by the minute
US /baɪ ðə ˈmɪn.ɪt/
UK /baɪ ðə ˈmɪn.ɪt/

1.
a cada minuto, minuto a minuto
continuously and rapidly changing or increasing
:
•
The situation is changing by the minute.
A situação está mudando a cada minuto.
•
Her confidence grew by the minute as she spoke.
A confiança dela crescia a cada minuto enquanto ela falava.