After any years, the festival became popular.
Después de muchos años, la fiesta se hizo popular.
change over time
Paella became the traditional dish of Valencia.
La paella llegó a ser el plato nacional de Valencia.
During the festivals, people become happy.
Durante las fiestas, la gente se pone más feliz.
temporary emotional change
Education in Catalán has become popular, despite the dictatorship's attempts to ban it.
La educación en catalán se ha hecho / ha llegado a ser popular, a pesar de los intentos del regimen de prohibirla.
During El Colacho, the babies have to stay still.
Durante el Colacho, los bebés se quedan muy tranquilos.
Regional dishes have become an important part of Spanish culture.
Los platos regionales se han convertido en una parte importante de la cultura española.
Transformation
Many young people are becoming vegetarian in Spain.
Muchos jóvenes se hacen vegetarianos.
Voluntary change
Last year some regional languages became less common among young people.
El año pasado, algunas lenguas regionales se volvieron menos comunes entre los jóvenes.
sudden change in status
I
Galician will end up as a dead language if it isn't protected.
El gallego se quedará como una lengua muerta si no se lo protege.
At Easter, traditional food like torrijas become more expensive.