Across:
* Preposition: Indicates movement or position from one side to the other of something.
* Example: "The cat walked across the keyboard."
* Example: "The bridge goes across the river."
* Adverb: Indicates movement or position going from one side to the other.
* Example: "The ball rolled across the floor."
Acrossed:
* Verb: Means to cross something, but is rarely used in modern English.
* Example: (Outdated) "He acrossed the street."
In summary:
* Use "across" for movement or position from one side to the other of something.
* "Acrossed" is rarely used and is generally considered incorrect.
Here are some examples of how to use "across" correctly:
* Walk across the street.
* The book was lying across the table.
* He drove across the country.
* She looked across the room at him.
Avoid using "acrossed" in most cases.