Classify the words based on their past tense ending. Words: close, start, paint, call, dance, want, open, plant, watch, live, look, finish, help, need, stop, clean, turn, like, skate, wait, show

The past tense endings are determined by the pronunciation of the '-ed' suffix. Here's how the words are classified:

• -t or -d sound (voiced):
• called
• danced
• opened
• lived
• wanted
• watched
• showed
• -id sound:
• started
• needed
• painted
• waited
• hoped (assuming 'help' is meant to be 'hope')
• -t sound (voiceless):
• closed
• planted
• watched
• finished
• stopped
• helped
• liked
• skated
• cleaned
• turned
• looked