Can I transfer ERC20 to ETH?

Excuse me, I have a question about cryptocurrency transactions. Could you please clarify something for me? I'm trying to understand if I can transfer ERC20 tokens directly to ETH. Are they interchangeable, or do I need to go through a conversion process? It's a bit confusing for me since I'm still new to this field. Could you please explain the process and any potential implications of such a transfer? Your guidance would be greatly appreciated.