to keep changing your mind about something
seguir cambiando de opinión sobre algo (seguir cambiando de opinion sobre algo)
"He’s been going back and forth about buying a new car."
"Él ha estado cambiando de opinión sobre comprar un coche nuevo." (El ha estado cambiando de opinion sobre comprar un coche nuevo)
to think in an unconventional or creative way
to inhale air deeply
to be extremely happy and excited
to shock or upset someone greatly
a process has started and is making progress
to remain loyal to someone or something