You need to translate the strings to something else in your CB language files. This should be done from the installable English language plugin found below.
forge.joomlapolis.com/projects/lan-cb-en/files
You can change the default language files, but it's not advised as you'll lose your changes on update of CB.
You can also find the English language files in addition to other languages on our Transifex below.
www.transifex.com/projects/p/cb/