Commas with lists
2. Commas with subordinate clauses (adverb clause at the beginning of a sentence
Use a comma when you start with the dependent clause.
Until I graduate, I will keep studying hard.
I will keep studying hard until I graduate.
3. Commas with FANBOYS (and, but, or, so)
If you have a subject-verb set on both sides, you use a comma.
The FANBOYS conjunction is always in the middle and always with a comma.
SV, Conj SV
Information, Video lesson and Practice about FANBOYS (in case you haven’t learned about them before)
Video lesson on when FANBOYS (Coordinating Conjunctions) join clauses and when they join just a list. https://www.youtube.com/watch?v=ENuEK6b_fdk