Adverbs of frequency and possibility

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Across
  1. 2. Maybe, could happen (8 letters)
  2. 4. Many times, regularly (5 letters)
  3. 7. Maybe, potentially (7 letters)
  4. 8. Often, many times (11 letters)
  5. 9. At all times, forever (6 letters)
  6. 10. Without a doubt (9 letters)
Down
  1. 1. Likely to happen (9 letters)
  2. 3. Sometimes, not often (12 letters)
  3. 5. Absolutely, for sure (10 letters)
  4. 6. Not often, seldom (6 letters)