This document provides instruction on grammar concepts in Filipino class. It discusses the focus on the actor ("pokus sa ganapan") which uses suffixes like -an/-han to indicate what or who is acted upon. It also discusses the focus on cause ("pokus sa sanhi") which uses prefixes like i- and ika- to indicate what causes the action. Examples are provided for each. Students are asked to identify which focus (cause or actor) is being used in sample sentences. Key details about suffixes, prefixes and examples are summarized.