

父は朝がはやいです。
今日は帰りがはやいね。
冬は暗くなるのがはやいですか。
"はやい(早い)" is in the lesson "Adverbs 5" (Level 41), along with 10 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.