Hello Narinesa,
Your Gmail may not be connected to outlook to do this
1. Enable POP/IMAP in Gmail
Log into your Gmail account and click on a small gear in the right top corner of the window. Select Settings. After that, go to the Forwarding and POP/IMAP
Under IMAP Access, select Enable IMAP.
Select Save Changes.
2. Enable folders
Outlook and Mail for Windows 10 need access to your folders in Gmail. Make sure that the folders are set to show in IMAP.
In a browser, go to Gmail.com.
Select Settings > Settings.
Select the Labels tab.
Make sure that Show in IMAP is selected for Inbox, Sent Mail, Trash, and All Mail.
You can also select Show in IMAP for other labels that you want to see in Outlook or Mail for Windows 10.
3. Refresh Outlook or Mail for Windows 10
Once you've enabled IMAP in Gmail and set your Gmail folders to show in IMAP, refresh Outlook or Mail for Windows 10.
It can take about 10-15 min to sync.