Conditionals allow you to express a wide range of scenarios. You can talk about an event that is unlikely to take place with the help of a conditional. Similarly, you can use conditionals to talk about purely imagined scenarios or hypothetical situations. You can also use conditionals to talk about something likely to happen in the future. Hypothetical outcomes that have got to do with the past are also expressed using conditional sentences. In short, they help you articulate your thoughts in the best possible manner, and that’s why they are considered significant.