Só

Adverb

  a

Determiner

  finais

Noun

  do

  outono

Noun

  se

Pronoun

 forman bandos compostos  por

Adposition

  varias

Determiner

  familias

Noun

.

It is only in late autumn that bands composed of several families are formed.

It is only in late autumn that bands composed of several families are formed.