The document discusses various verb tenses in English including: - Simple past tense used to describe past actions or events. - Past continuous tense used to describe ongoing activities in the past or interrupted activities. - Present perfect tense used to describe past events with present relevance or unspecified time. - Present perfect continuous tense used to emphasize the duration of something that began in the past and continues. - Past perfect tense used to describe actions that occurred before other past actions. - Past perfect continuous tense used to emphasize how long something had been happening before another time in the past. The document includes an example joke about a man advertising for a wife and receiving reply letters saying "you can have mine," and