Second generation Australians were much more likely to speak their parents' language if both parents spoke the same language.
(Second generation Australians; were; much more likely to speak their parents' language if both parents spoke the same language) (Second generation Australians; to speak; their parents' language) (both parents; spoke; the same language)
Second generation Australians Second generation Australians both parents
were to speak spoke
much more likely to speak their parents' language if both parents spoke the same language
their parents' language
the same language