The document discusses the present simple and present continuous tenses in English. The present simple is used to express habitual actions, general truths, and instructions. It can also express certain actions happening now in sports commentaries or with verbs not normally used in the continuous. The present continuous expresses actions happening at the moment of speaking, temporary actions over time, and planned future actions. It lists verbs like believe, think, like that are not typically used in the continuous aspect, as well as modal and perception verbs.