

料理しながらはなうたをうたうのが好きです。
父は機嫌がいいと、いつもはなうたをうたっています。
電車の中でははなうたをうたわない方がいいよ。
"はなうたをうたう(鼻歌を歌う)" is in the lesson "Verbs 12" (Level 24), along with 11 other useful words. LinDuo has 180 topic lessons like this one, 2,379 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.