Translation of sheaf in Spanish

After next week, I will tutor the Mr. Zillmay from the language lab in Los Angeles, he is currently in the states. The lesson will take place in LA, but it may be held no earlier than mid-February.
I have began to learn English. I like to swim and to dive, because I lived near the beach while I lived in Miami. It is not similar to any other sport. But this week have not been yet to the pool.
I have not managed to contact you. And please write me only to the Vocabulix inbox and not directly to my other email addresses? When is the best time to reach you? For me anytime is good.