Normally, when we talk about conjunctions, we learn the seven coordinating conjunctions: and, or, nor, for, so, but, and yet.
However, there are different types of conjunctions. (Yes, even an English teacher can make this mistake! ha!) Another type of conjunction is the subordinating conjunction. Unfortunately, there are a lot more than seven of these! You can find a list here: https://www.grammarly.com/blog/subordinating-conjunctions/.
The third type of conjunction is the correlating conjunction. Here is a quick list:
- either… or
- neither… nor
- not only… but also
- both… and
- whether… or
- so… as
If you’d like to brush up on conjunctions, you can visit http://partofspeech.org/conjunction/.