For most verbs you add an ‘ed’ at the end of the word to change it to the past tense - for example, ‘she talks’ becomes ‘she talked’. However, there are some irregular verbs where the ...

The abstract is usually in the past tense due to it showing what has already been studied ... Passive voice also allows one to help move words to emphasize them. Passive voice can also be useful when ...

Readers are familiar with this tense because they are used to being told a story that has already taken place. For most verbs you add an 'ed' at the end of the word to change it to the past tense ...