Here's why:
* They modify verbs, adjectives, or other adverbs. They show the relationship between ideas, clauses, or sentences, often indicating the direction of thought.
* They often provide context and flow to writing. They help the reader understand the connection between ideas and make the writing smoother and more coherent.
Examples:
* Therefore (shows conclusion)
* However (shows contrast)
* Furthermore (shows addition)
* In addition (shows addition)
* Similarly (shows comparison)
* Consequently (shows result)
While they are primarily classified as adverbs, their specific function can be more nuanced depending on the context. But understanding them as adverbs gives you a solid foundation for using them effectively in your writing.