We’re going to briefly examine what a sentence is exactly, and how it comes in different forms. Our first type of sentence is what is known as a simple sentence. This sentence contains one clause and one clause only, which can include only one word, such as “Go!” It would be a mistake to assume, however, that a simple sentence can’t be a long sentence.
One can’t tell a compound sentence, for instance, from a simple one. It’s also very important to include transitional phrases in order to link simple sentences to surrounding ones.