I am wondering why I can speak English to my children. Maybe I have tried several times and it makes me believe I will fail? Perhaps my children are old enough to speak with them with simple English? Or maybe because they hardly response me in English? Or the reason is that my English is not good or I was lazy speaking in English, or I forget to speak in English and speak Vietnamese y the way. I don't know why but the longest time I spoke English to them was only one month. Now, I am trying again to speak in English.