Answer: Hi there! I'd say that the term that best fits this definition is a coordinating conjunction.
Explanation: (I hope that you don't mind me citing from a previous answer of mine to explain this.) Coordinating conjunctions are commonly called FANBOYS. It is an acronym that represents the following words:
- <em>F</em><em>or</em>
- <em>A</em><em>nd</em>
- <em>N</em><em>or</em>
- <em>B</em><em>ut</em>
- <em>O</em><em>r</em>
- <em>Y</em><em>et</em>
- <em>S</em><em>o</em>
All the terms listed above can be used to connect independent sentence clauses, like this:
- I want toast, eggs, and orange juice.
- They wanted to come to the party, but their mom said no.
- Jax is not helping us, so we'll have to do all the work ourselves!
I hope that this helps! :)
They had built a lean-to for a shelter,
B.) Had left
The bus had left by the I arrive at the station
