She said to the children, “you must not play with fire”

1. She told the children they were not to play with fire.
2. She told the children that they must not play with fire.
3. She told the children not to play with fire.
4. She told the children they were not to play with fire.

 She         told      the children that they must not play with fire.

Sub           V          object                  prep            V      Pro         obj