Words with More than One Job
Many words in English can have more than one job, or be more than one part of speech. For example, "work" can be a verb and a noun; "but" can be a conjunction and a preposition; "well" can be an adjective, an adverb and an interjection. In addition, many nouns can act as adjectives.
To analyze the part of speech, ask yourself: "What job is this word doing in this sentence?"
In the table below you can see a few examples. Of course, there are more, even for some of the words in the table. In fact, if you look in a good dictionary you will see that the word "but" has six jobs to do: