mark, you know, speaking and listening to English is difficult for me. I'm afraid that we talk on the phone could not understand. Please contact me with writing before me, or to try.
Mark, you know, talking and listening to English is hard for me. I'm afraid we talk together over the phone may not understand. Will you please contact me by writing before attending or will try to show?
Do you know the Mark speak and listen to English is difficult for me, and I am afraid that we may be talking on the phone you don't understand, please contact me with the writing before it, would you just look at it?