Mother Tongue by Amy

This  story is about a young lady that enjoyed everything about the english language. But her mother on the other hand has broken english though she reads all kinds of books, reports and other material.  Amy friends understand only 50 percent of what she says and others understand 80 to 90 percent.  But to Amy she understands her perfectly clear when her mom speaks.  Amy is actually describing to the reader that when people hear the way her mom speaks it's broken english or limited english.  Even to the fact when she was younger she was literally ashamed and embarressed of the way her mom used english. And when Amy was a teenager her mom relied on her to answer the phone and conversate on the behalf  of her mother.  The author is saying that she believes that her mothers english had an effect on limiting her possibilites.  The purpose was to inform you about how her mom broken english was not affective communication.  The mood was that you had compassion for Amy because she had to deal with this pretty much all her life and a young girl. And even though her mom was intelligent but appeared ignorant because she had a communication problem.