Unit 1 Long a
Unit 2 Long e
Unit 3 Long i
Unit 4 Long o
Unit 5 Long u
Unit 6 Hard and Soft c
Unit 7 Hard and Soft g
Unit 8 ar and or
Unit 9 er, ir, and ur
Unit 10 ch and sh
Unit 11 th, wh, and tch
Unit 12 gh and ph