I Dabble At Scrabble

I love to dabble at Scrabble Making words, with tiles I move. Spending four hours a day Making words up so smooth It is pretty much the luck of the draw I get a Z, and happy I feel. Zygote would be great, and zany too. Easy to fit in zig, and zeal? Know all two-letter words, have played them all. Three-letter words, I have played all but three. I play Word Chums, also and Words with Friends too Which three have I not played? Totally unclear to me.