ELI5: Explain Like I'm 5

Conditional mood

Okay, imagine you're playing with blocks and your mom says "if you clean up your blocks, you can have ice cream." She's using something called the "conditional mood." It means she's giving you a condition or a requirement in order for you to get what you want - in this case, ice cream.

In the English language, we use the conditional mood when we're talking about things that haven't happened yet, or things that might happen depending on a condition. For example, if you were planning a picnic and you said "if it rains, we'll have to stay inside," you're using the conditional mood because you're talking about something that might happen in the future (rain), and what you'll have to do if it does happen (stay inside).

So, anytime you hear someone say "if" or "unless" or "provided that," they are probably using the conditional mood. It's a way of expressing things that haven't happened yet, but might, and what we'll have to do if they do.