VERB TENSES II

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Across
  1. 3. Conditional sentence type 1 needs present simple in the if ...
  2. 4. and the main verb plus ... .
  3. 7. The past ... is built with the past simple of have
Down
  1. 1. you need do or ... .
  2. 2. you need ...
  3. 3. person singular ... .
  4. 5. The ... simple is built with will
  5. 6. or ... and the main verb plus ing.