This document provides an overview of grammar concepts related to the present simple tense, including: - Using the present simple to describe habits and things that are always true. - Forming yes/no and question sentences in the present simple. - Using time expressions like daily, weekly, monthly with the present simple. - Expressing frequency with adverbs like always, usually, often, sometimes, occasionally, never. Examples are given and there is a practice section for students to apply what they've learned.