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 ...

The word 'tense' comes from 'tempus', the Latin word for time. Some languages like Mandarin Chinese don’t have verb tenses but express time in different ways. When writing, it’s important to ...

I walked to the shop. However, not all past tenses are written like this as there are exceptions which need to be learned separately. For example: I bent down to pick up a penny. The correct past ...