Напиши слова в 3 колонны:
skied,thanked,helped, wanted, washed,
played, watched, cleaned, jumped, lived,
ckipped, skated, loved, liked, dressed.

1 ed читается как t в словах - thanked helped washed watched jumped skipped liked dressed 

2 - ed читается как d в словах - skied played cleaned lived loved 

3 ed читается как id в словах wanted skated