Verb conjugation of "reckon" in English

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 sent you my e-mail address. If you want to write me there, I could view the messages immediately. It would be easier than on the Vocabulix forum, as I'm not online often enough.
The course was a bit tough because the teacher always gave lots of homework. We were upset about his behaviour. He was very arrogant towards all the students. It was simply no fun to study there.