I = Tôi
go to school = đi học
every day = hằng ngày
The structure of Vietnamese is the same as that of English. One full sentence includes Subjects + Verb + Adverb. Please notice that in Vietnamese, "Verb" does not depend on "Subjects", unlike "s" or "es" in English. More importantly, in Vietnamese, there are five tones, "up", "down", "fall", "dot", "question" inclusive. Each show different meaning when following with the same word; for example, "bé", "bè", "bẽ", "bẹ", "bẻ", respectively.
P/s: If it makes you confused, don't hesitate to ask me on Skype because sometimes I'm not on italki.