So, I want to check my diary and see what I need to do today. Anything really important should flash, so I know I need to take care of that. But, I know that my boss is waiting for me to finish that puff piece on our new acquisition, so double flash that. Also let me know I need to buy cat food. Stat.
Make a program that can parse that piece of text and you're onto a winner. (I'm trying)
Syntax should be the least of concerns, and even if it wasn't, involving the subtleties and ambiguities of english language wouldn't be the solution.
EDIT: I don't mean to say that a natural language programming language couldn't be useful, but I'm arguing that it won't be unless you can use natural language to move closer to the problem domain, rather than abstracting the solution description further.
Change value of potatoes to 10. (potatoes = 10).
Make potatoes equal 10. (potatoes = 10).
Give every person at the dinner table a potato. (for x = 0; x < dinnerTable.count; x++ {dinnerTable[x].potatoes += 1})
Etcetera.