f and v minimal pairs

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Across
  1. 2. to try very hard to do something or to make something happen, especially for a long time or against difficulties
  2. 3. to cause a problem by being present in large numbers
  3. 5. good or good enough; healthy and well
  4. 6. meat from a very young cow
  5. 8. whose way of dressing, speaking, and behaving is thought to show their lack of education and low social class
  6. 9. to force someone to have or experience something unwanted or undesirable
  7. 10. the outer layer that is separated from grains such as wheat before they are used as food
  8. 11. the climbing plant that produces grapes as its fruit
Down
  1. 1. an insulting word for someone, usually a young
  2. 2. violent or angry disagreement
  3. 3. to put money, effort, time, etc. into something to make a profit or get an advantage
  4. 4. to experience something physical or emotional
  5. 7. (of a speech sound) produced by making the vocal cords move very quickly several times