The correct order of first, then, last and next:
Well, think about it: First means, well, first - in the beginning. So we can leave first where it's at.
Now, where do you think last would go? In the back, right?
Wait a minute! We're not finished yet!
Just switch the then and next so that they're in opposite places:
Your words should now look like this -
First, next, then, last --
I'll give you an example using all these words in a tiny paragraph.
First, Mary went to the store.
Next, when she got there, she bought a gallon of milk.
Then, she left the store.
Last, she arrived home and drank some of her milk.
↑ ↑ ↑ Hope this helps! :D
