1. The document discusses the past perfect tense, including its usages and structure.
2. The past perfect tense is used to refer to an action that was completed before a certain time in the past. It is used to describe actions that finished before other past actions or events.
3. The structure of the past perfect tense involves using had plus the past participle of the verb. Questions are formed using had plus the subject and verb. Common keywords that are used with the past perfect include when, before, after, by the time, until, and for.
1. The document discusses the past perfect tense, including its usages and structure.
2. The past perfect tense is used to refer to an action that was completed before a certain time in the past. It is used to describe actions that finished before other past actions or events.
3. The structure of the past perfect tense involves using had plus the past participle of the verb. Questions are formed using had plus the subject and verb. Common keywords that are used with the past perfect include when, before, after, by the time, until, and for.
