Só

Adverbio

  recentemente

Adverbio

  empezaron

Verbo

  a

Adposición

 facerse grandes progresos  na

 comprensión  da

  súa

Determinador

  función

Substantivo

.

It is only recently that great progress has been made in understanding its function.

It is only recently that great progress has been made in understanding its function.