You can help them to understand past and future tenses by practising talking ... This helps them talk about the things that aren’t happening right now, otherwise known as decontextualising.

Whatever will happen later is in the future. What is now occurring is in the present. Something that occurred and is over is in the past. But scientists still have some questions. For example ...

When you are writing, you can use words that show if the events have already happened, are happening now or will happen in the future. The past tense is used for things that have already happened.