

Como estás hoje?
Não sei como se diz isto.
Como vais para o trabalho?
"como" is in the lesson "Adverbs 5" (Level 41), along with 10 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.