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To double or not to double?

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  • pride + -ful
    prideful
  • pain + -less
    painless
  • hug + -ed
    hugged
  • play + -ing
    playing
  • mop + -ing
    mopping
  • bend + -ing
    bending
  • drink + -ed
    drank
  • flow + -ed
    flowed
  • pin + -ing
    pinning
  • sleep + -ing
    sleeping
  • spade + -s
    spades
  • fox + -es
    foxes
  • plan + -ed
    planned
  • jump + -ed
    jumped
  • blink + -ed
    blinked
  • dog + -s
    dogs
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