I have a question regarding the use of conjunctions (because, since, and for). Any difference? Thanks!
Yes, there is marginal difference, they all introduce a reason which may be direct, casual or iustified for an occurrence or action.
I was sleeping because I was tired. (Direct reason, due to the fact that:)
Since I was tired, I was sleeping. (casual, implying merely circumstance)
I was sleeping, for I was tired. ( introduced the reason, proof, or justification)