You use the perfect tense when, in English, you would say that something has happened. So, if you wanted to say: ‘You have been to the hairdresser,' 'she has eaten all the biscuits’ or anything else ...

Early this spring, in Hoffmann-La Roche, Inc. v. Promega, the United States Court of Appeals for the Federal Circuit reviewed a district court opinion on the validity of an issued patent 1. The court ...

The perfect tense is used to say what someone did, or has done, in the past. The perfect tense: How to talk about the past in German If you want to talk about what has happened in the past you’re ...

In English, the past perfect tense describes an action completed before another past event, or an action completed before a specific time focus. Grammatically, as the present perfect does, the past ...

One’s tense will vary depending on what one is trying to convey within their paper or section of their paper. For example, the tense may change between the methods section and the discussion section.