By default, Gmail groups a message and its replies in a conversation that’s listed as a single inbox entry. Conversation threads are the recommended way to manage your email; they provide a fast, efficient way to see multiple related messages in one view. However, if you prefer to list messages separately, you can turn the Conversation view off. You can switch back at any time.

1. Open Gmail.
2. Click the gear in the top right and then select See all Settings:
   
3. Select the General tab:
   
4. Choose Conversation view on or Conversation view off.
5. Click Save changes at the bottom of the page.

Once you have done this, you should see emails in an un-threaded view. You can switch back anytime if you prefer the conversation view to be on.

It is important to note that the Gmail conversation view will show that conversation is in the label even if not all emails in the conversation are in the label.