along with / together with
Phrases that add a companion to a subject without rewriting the subject as a compound.
Along with and together with add extra information. They do not turn a singular subject into a plural one. The verb agrees with the first subject: The report, along with the exhibits, is ready. Use and when both items are equal subjects: The report and the exhibits are ready. The two phrases are close in meaning; along with is the more common of the two.
Examples
Use The director, along with two aides, is traveling Monday.
Use The director and two aides are traveling Monday.
Avoid The director, along with two aides, are traveling Monday.