Some nouns change the base word?

Some examples of irregular plurals that change the Word like foot to feet are:

• axis to axes
• child to children
• deer to deer
• goose to geese
• louse to lice
• man to men
• mouse to mice
• oasis to oases
• ox to oxen
• person to people
• series to series
• tooth to teeth

With a couple that don't change at all, just to see if you're paying attention.