Volume 4 of the series explores MAG and MAKAPAG verbs. The book comprises 8 chapters and explains the concept of actor focus. Chapters 1-3 include example conjugations and step by step instructions on how to modify root words. Chapter 5 details different types of MAG/MAKAPAG simple verb sentences and an expanded description of focus. Chapters 5-7 contain examples and explanations of various ANG, NG & SA phrases that can be substituted into a sample sentence. This volume contains a consideration of possessive phrases.