My not having a horse is one of the biggest problems of my life. A horse makes everything better :)
How is "tenho" pronounced? It sounded almost like "tengo" or "tenno" - isn't it supposed to be something like "ten-yo"?
Do you know how the "ñ" from spanish sounds like? It's pretty similar. Something like "teñu" (the "o" at the end sounds like "u")
I haven't a horse is also correct
When she says tenho it sounds like tem
It's related to verb conjugation: Eu tenho, ele/ela/você tem. Refer to this link: http://www.conjuga-me.net/verbo-ter.
porque precisa usar o ''do''?
because you need to use the '' do ''?
Para negar a maioria dos verbos regulares em inglês no presente, use-se "do not" (don't) para deixar uma sentença negativa.