Tie-Dye Day: Joining Ideas with Conjunctions
0 / 11Use and, but, or, so, because, when, if and more to join ideas.

And, but, or, so and yet are coordinating conjunctions. They join two ideas that are equally important. When they join two sentences, put a comma before the conjunction.
Do you want a striped shirt a spiral shirt?
Ravi left his shirt in the dye too long, it turned very dark.
Lila tried to make a heart shape, it looked more like a circle.
Because, when, after, before, if and until are subordinating conjunctions. Each one begins a part of a sentence that cannot stand alone. That part tells why, when or what could happen.
A part that starts with a subordinating conjunction needs another part that can stand alone.