What is it?

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Across
  1. 4. A, An
  2. 7. am, is, are
  3. 8. I'm, she's, He's
  4. 9. work, live, have, like,
Down
  1. 1. I, you, she, he, it
  2. 2. We use noun + 's to show relationship or ownership.
  3. 3. always, usually, often, sometimes,...
  4. 5. red, big, small, empty
  5. 6. We add -s to the ____ of most nouns.