<span>The answer is that an introductory adverb clause is usually followed by a comma. This is to introduce a pause to separate the two clauses. For example, When you go to the beach, you like to play with the sand and build sand castles. There you see that the indroductory clause, "when you go to the beach" is separated from the main clause "you likde to play with the sand and build sand castles" by a comma.</span>
The inauguration of the president of the United States is a ceremony to mark the commencement of a new four-year term of the president of the United States. The inauguration takes place for each new presidential term, even if the president is continuing in office for a second term.
