Categorize the given verbs based on the pronunciation of their past tense '-ed' ending.

Verbs and Past Tense Endings

• /id/
  • want (wanted)
  • open (opened)
  • visit (visited)
• /t/
  • wash (washed)
  • watch (watched)
  • cook (cooked)
  • work (worked)
  • play (played)
  • listen (listened)
• /d/
  • carry (carried)
  • clean (cleaned)
  • travel (traveled)

Explanation

The pronunciation of the '-ed' ending in the past tense of regular verbs depends on the final sound of the base verb:

• After sounds /t/ and /d/, the ending is pronounced /id/.
• After voiceless sounds (like /p/, /k/, /s/, /ʃ/, /tʃ/, /f/), the ending is pronounced /t/.
• After voiced sounds (like /m/, /n/, /l/, /r/, /g/, /b/, /v/, /z/, and vowels), the ending is pronounced /d/.