Aprendando Español

Necesito aprendar sobre diferente conceptos gramatical. I have present tense for -ar, -er, and -ir verbs, and Iḿ working on Future and Preterite for both. Discord moves too fast for me, so I need a better setting. Can you fellow Linguaholics provide me with a short crash course in avanzado gramatica españa? It doesn´t need to be in-depth, just a chart or something showing the more obscure verb tenses. I also need help conjugating oír, dar, and dicer. Gracias, A.S.