But the plural of ox should be oxen, not oxes.
You may find a lone mouse, or a whole nest of mice,
But the plural of house is houses, not hice.
If the plural of man is always called men,
Why shouldn't the plural of pan be called pen?
When I speak of a foot, and you show me two feet,
And I give you a boot, would a pair be called beet?
We speak of a brother, and also of brethren,
But though we say mother, we NEVER say methren!