Am I speaking broken English?

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A couple of minutes ago, I recieved phone call from one of my students. surprisingly, she phoned me in English not Chinese-our mother tougue, why? she told me she joined a training program which would last for a month, and the proogram is called TIP (Total immersion program), which means that all the program trainees have to speak English all the time during the training month. During the call, she asked about the date when and the place where she will take the graduation photo for the certificate. while we were discussing that issue in English, my wife listend to our conversation sitting beside me. After the phone call ended, my wife said to me with a light scorning smile, "professor X, your english is not so good as mine, your English is broken". did i speak broken english? probably yes just now. do i still speak English after the Chinese thinking process? probably yes tonight. how come that happens? I read less and write less and speak less English than before. I need to learn and make an English learning plan right now.