The document discusses the present continuous tense in English. It explains how to form the present continuous using "be" verbs like "am", "is", "are" plus the "-ing" form of the main verb. Examples are given like "I am writing a book". It also covers the short forms like "I'm writing". The present continuous is used to describe actions happening now or around now, based on time expressions like "now", "at the moment", "these days", etc. It can be used for temporary actions that are not necessarily occurring at the exact moment of speaking.