Are you just starting your study of Spanish?  Or are you still in the early- what we call "novice" and "early intermediate"- years?  If so, you may find this section of my website useful.  There are two major sections, one for vocabulary and another for grammar.  Perhaps you are trying to learn on your own, or maybe you have been directed here by your profesor de español .  Either way, I hope you find this useful as a presentation or review tool.  Click where you want to go: