Most novels are written in the past tense. Readers are more 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 ...

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 ...

you will need to use a past tense. In German, you can use the perfect tense. This also exists in English to show that you have done something: The perfect tense: How to talk about the past in ...