Antes

Adverbio

  de

Adposición

  abrir

Verbo

  a

Determinador

  boca

Substantivo

,  seus

Determinador

  dentes

Substantivo

  já

Adverbio

  foram

Auxiliar

  vistos

Verbo

.

Before he opened his mouth, his teeth were already seen.

Before he opened his mouth, his teeth were already seen.