Good, I thought this forum was here to help people with questions about Japanese grammar anyway, not critique the quality of other people's textbooks.
You'r not helping at all, you're nit-picking at particulars that have nothing to do with the question at hand and ridiculing me for being in the early stages of learning Japanese. Well I'm sorry but nowhere does it say that you must be of X level of knowledge of Japanese or above in order to have any questions about it. I keep pointing out that I'M IN A BEGINNER'S COURSE and you keep reacting to me as if I should know these things already. So good, go away, I don't need your insults and attitude and convient way of avoiding the question in order to learn anything. In fact I'm quite the worse for having it.
(that was directed @Grapefruit, everyone else has been helpful or at least trying to be helpful, and the above is in no way meant towards anyone else).