Many often confuse it with the conjunction. The difference is not always easy to see. After a while, the concert was boring. He sat by the girl with red hair. Interjections Interjections are the easiest part of speech to understand.
Interjections are usually abrupt interruptions into the usual flow of the sentence.
Those fireworks were spectacular. Interjections are usually followed by either a comma or an exclamation point as the examples show. Back to Grammar .