Yes, you can start a sentence with the word ‘by’. In fact, beginning a sentence with ‘by’ can be an effective way to create emphasis or introduce a specific action or context.
For instance, consider the sentence: ‘By studying regularly, students improve their chances of success.’ Here, starting with ‘by’ highlights the method that leads to the outcome. It can also add variety to your writing.
However, it’s essential to ensure that the sentence structure remains clear and that the sentence conveys the intended meaning. Using ‘by’ at the beginning can sometimes create a fragment if it’s not followed by a complete thought, so it’s crucial to provide enough information to make the sentence complete.