

Os meus avós visitam-nos frequentemente aos domingos.
A Inês chega frequentemente atrasada ao trabalho.
No inverno não vamos frequentemente à praia.
"frequentemente" is in the lesson "Time 3" (Level 40), along with 13 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.