This document discusses the uses of different verb tenses in English, including the present simple, present continuous, present perfect simple, and present perfect continuous tenses. The present simple is used to describe schedules, habits, general truths and permanent situations. The present continuous expresses things happening now, temporary situations, and annoying habits. The present perfect simple talks about repeated past actions, experiences, unfinished time periods and completed actions still relevant. The present perfect continuous describes long actions with obvious results and actions that began in the past and continue to the present.