Clase I :


ELM - MOW - LOW - OWE - MEW - OWL - MEOW - MOOL - WEEL - MOLE.

Clase II :


FIG - HIT - SIT - FIT - HIS - ITS - GIST - FISH - FIST - SIFT - GIFT - THIS - SIGH - SHIFT.

Clase III :


LIE - LESS - MISS- LIES - ELM - MESS - SMILE- SMILES - MILE - MILES - ISLE - ISLES - LIME - LIMES.

Clase IV:


OAR - ARC - COY -CAN - CAR - RAY - NOR - CORN - YARN - ACORN - RAYON - ANY - RAN - CRAYON - YON - CYAY - ORCA - CRY.

Clase V :


EGG - RED - AGE - AGED - DAGGER - DAG - GEAR - DEAR - DARE - ARE - READ - EAR - RAGE - ERA - GAG - RAGED - GRADE.