There are variations in the way verbs form the past tense. They can be looked at in the following way: ...

Better writers think carefully about what tense to use and when they use it. Most novels are written in the past tense. Readers are familiar with this tense because they are used to being told a ...

For example, the tense may change between the methods section and the discussion section. The abstract is usually in the past tense due to it showing what has already been studied. Example: “This ...