Will? Going to? Present Continuous? Which one is correct?

Do you know the difference between the future tenses of verbs? Maybe you don't and you want to learn all about it, or maybe you do and just want to test yourself. There are two ways you can go about it.

1. I wrote all about verbs a few days ago in an extremely detailed previous post that you can check out HERE

2. You can go the easier path and watch this video. HERE

Tell me about future grammar