We use the past perfect to talk about something that happened before another event in the past.

In active voice, the subject of the sentence performs the action. In passive voice, the subject of the sentence receives the action.

Comparative and superlative forms are used to compare people, things, or actions. Adjectives describe qualities of nouns, while adverbs describe the way actions are performed.

English has several ways to talk about the future, each with specific uses and meanings. The most common future forms are "will," "be going to," and the present continuous.

Reported speech, also called indirect speech, is used to describe what someone else has said, without quoting their exact words. It’s useful when recounting conversations or reporting messages.