I learned Middle Eastern and Oriental Languages while in university and as a Foreign Service officer using everything from rote learning to immersive living. This is the method I would recommend to actually speak and understand in the shortest time. If you just want tourist sentences then go to the online tourist Portuguese sites. Unfortunately most will teach you Brazilian Portuguese. Google translate is great for just getting simple sentences you can memorize and doesn’t cost a thing. Besides, most Portuguese under 40 speak excellent English. it is courtesy to speak Portuguese in Portugal and I applaud your efforts.
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