Nick can speak Portuguese very well. That's because he's been studying it for 5 years.

Source: Tatoeba

Interlingua is an international auxiliary language developed between 1937 and 1951 by the IALA (International Auxiliary Language Association). Its vocabulary and grammar is chiefly derived from five control languages: English, Spanish, Portuguese, French, and Italian.

Source: Tatoeba

My native language is Portuguese.

Source: Tatoeba

The original edition is great, but the Portuguese translation contains errors.

Source: Tatoeba