Underline the verb forms which are not possible: 1. the castle has been built by william the conqueror in the 11th century. 2. nothing has been decided yet. 3. jenkins was killed 2 weeks ago. 4. it is thinked that apples are good for you. 5. a new shop was been opened yesterday. 6. a speech will be given by our governor next week. 7. she was been given a good mark. 8. all the papers are been kept in this file. 9. this book is being published now. 10. the students were not allowed to enter the room.