GUESS THE MODAL VERB

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Across
  1. 1. Formal way to ask for permission
  2. 2. Used to offer help or make suggestions
  3. 3. Stronger, more formal version of 'should
  4. 4. Used for promises, decisions, or future facts
  5. 6. Past of 'can', also used for polite requests
Down
  1. 1. Weaker possibility than 'may', means 'maybe
  2. 2. Used to give advice or recommendations
  3. 4. Used in 'if' sentences for imaginary situation
  4. 5. Shows strong obligation or certainty
  5. 6. Used to show ability in the present