1. click / on your keyboard. then type summon, you can replace cave spider to any entity you want.
Then type the ~ key 3 times with a space in between, you can do this by pressing shift and
pressing the key above the left tab key.
2. Make a space then type a curly bracket, do this by pressing shift adn pressing the key on the right of "P".
Then type "Passengers:" make sure you have a capital "P" Then type a bracket then a curly bracket
3. type "id:" make sure there are no capitals. you can replace boat with any thing,like "minecraft:leash_not". you might want to see what
entitys there are by typing "/summon _______". in the blank you can see all the entitys by pressing tab, then copy the entity name.
4. To finish of, you need to do a curly bracket then a bracket then a curly bracket again.
Then Your Done! You can make it different entitys to make cool things. It should all be green if it is correct.
