“Every one of us have a role to play” or “Every one of us has a role to play”? “A bunch of students were waiting outside” or “a bunch of students was waiting outside”? “It is I who am here” or “It is ...

Mayor Carlson, along with his deputies, plan to visit the memorial. Mayor Carlson, along with his deputies, plans to visit the memorial. Which is right? Plan or plans? And, more important, why is this ...