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 ...

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 whole word ...

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 examples below show how an action, state, or occurrence can be moved from a noun back to a verb. In your scientific paper, use verb tenses (past, present, and future) exactly as you would in ...

(Sentence 2 happens to be in the past tense, but 3 is not; both 2 and 3 are in the passive voice ... As I said above, it is appropriate to use the passive voice when it clarifies your meaning. Here is ...