min 和 mitt 和 mina 有什么区别？如果难以说明的话，请教我一下例句。

It depends on if the word has a "en" or "ett".
"Min" is used on "en" nouns.
"Mitt" is used on "ett" nouns.
"Mina" is "min" and "mitt" in plural.

Example. Min
Min katt = my cat.
Min boll = my ball.
One cat is called "en katt", and one ball is called "en boll". Both starts with "en", so you should say "min"

Example. Mitt
Mitt hus = my house
Mitt papper = my paper
A house is called "ett hus", and a paper is called "ett papper", both starts with "ett", so you should say "mitt".

Example. Mina
Mina katter = My cats
Mina hus = my houses
Mina papper = my papers.
It doesn't matter if the word is a "ett" or "en" word, you can use "mina" for all words. :)