Commas are used to work along with a conjunction that joins two complete sentences. For example: The class is difficult, but I understand the lesson.Semicolon also separates, but serves two main purposes:
Commas are used to separate items in a series.For example: The teacher discussed math, science, and history in the class.
Commas are used to set off an introductory word or phrase. For example: Usually, there are students in the classroom.
Commas are used to set off a nonrestrictive phrase or clause from the rest of the sentence.For example: Jennifer Canton, a senior in college, received a scholarship last week.
Commas are used to set off direct quotations.For example: "Off with their heads," she exclaimed.
Commas are used in dates.For example: On July 4, 2014, we watched fireworks at the festival.
Semicolons are used to separate items in a series when one or more contain a comma.For example: The panel included last years judge, Jane Butler; Margaret Brown; and this year's beauty contest winner, Mary Beth Jones.Transitional words cannot join two independent clauses unless a semicolon is used. Transitional words such as: furthermore, likewise, then, thus, however, similarly, therefore, nevertheless
Semicolons are used to join two sentences when no conjunction is used to connect them.For example: The class convened at 8 a.m.; nevertheless, a few students still arrived late.
Quotation Marks enclose exact words spoken by a speaker or writer.
For example: As stated in the tribunal, "no on will go unnoticed."
Ellipsis uses three dots to signify omission of words from original quotation.
For example: As the reporter stated, "It was her fault, because ... "
