You'll need to use a Custom HTML field to do that with substitution IF usages. We've no field that frontend outputs a users usergroups. Example usage as follows.
[cb:if usergroup includes "1"]Public[/cb:if]
[cb:if usergroup includes "2"]Registered[/cb:if]
[cb:if usergroup includes "3"]Author[/cb:if]
[cb:if usergroup includes "4"]Editor[/cb:if]
[cb:if usergroup includes "5"]Publisher[/cb:if]
[cb:if usergroup includes "6"]Manager[/cb:if]
[cb:if usergroup includes "7"]Administrator[/cb:if]
[cb:if usergroup includes "8"]Super Users[/cb:if]
See the below tutorial for further substitution usage information.
www.joomlapolis.com/support/tutorials/107-use-cases/18353-using-substitutions-throughout-cb