Week 1 - Lessons 1 to 5 - 'et'/it/, 'est'/ist/, 'or'/uh/, 'ar'/uh/, 'ed'/id/, 'ed'/d/ and 'ed'/t/
Week 2 - Lessons 6 to 10 - Double Letters, 'ch'/ch/, 'tch'/ch/, 'oo'/oo/, 'oo'/u/, 'ng'/ng/, 'ck'/k/
