He ate not only the ice cream but also the chocolate.
not only, but also - correlative conjunction
Before we left home, I had had my breakfast.
Before - subordinating conjunction
Freya left quickly, and I was worried about her.
and - coordinating conjunction
We were running late, but it wasn’t possible to get out of here anytime soon.
but - coordinating conjunction
Neither Alex nor Robin can play baseball.
Neither, nor - correlative conjunction
He was panicking, so we were cautious.
so - coordinating conjunction
Even though the weather was horrible, they still went outside.
even though - subordinating conjunction