The page discusses the usage and structure of the Present Continuous tense in English. It explains when to use this tense and provides examples of its construction in affirmative, negative, and interrogative sentences. The page also lists time expressions commonly associated with the Present Continuous.

Definition: The Present Continuous is used to describe actions happening at the moment of speaking or planned actions in the near future.

The structure of Present Continuous sentences is explained:

1. Affirmative sentences: Subject + am/are/is + verb-ing

Example: "I am reading a book", "You are cooking", "She is playing the piano"

2. Negative sentences: Subject + am/are/is + not + verb-ing

Example: "You aren't reading"

3. Interrogative sentences: Am/Are/Is + subject + verb-ing?

Example: "Are you reading?"

Highlight: In all sentence types (affirmative, negative, and interrogative), the main verb always ends with -ing.

The page emphasizes the importance of word order in forming questions, noting that the auxiliary verb (am, are, is) is placed before the subject in interrogative sentences.

Vocabulary: Inversion - the process of changing the usual word order in a sentence, typically used in question formation.

Finally, the page lists time expressions that signal the use of Present Continuous:

• now
• at the moment
• look!
• listen!
• be quiet!
• tomorrow
• next week
• next Monday
• on Tuesday

Highlight: These time expressions are key indicators that a sentence should be in the Present Continuous tense.