There are quite a few exceptions to the actions rules, so assigning them point values is probably not much help.
Here are the all the basic action rules, with some tables and definitions that might help you!
The most basic rule is that on his turn a character can either do:
1 "standard action" + 1 "move action"
(or 1 move + 1 standard)
- or -
1 "full-round action"
Also, any
reasonable number of "free actions" are possible at any time, including on another creature's turn. The DM determines how many is "a
reasonable number", though!
Also, 1 "swift action" is possible during a character's turn.
Or, 1 "immediate action" is possible at anytime during the round, including on another creature's turn, but if you use an "immediate action" on another creature's turn, you can't also use a "swift action" on your turn.
(I think I got all that right... I'm sure someone will correct me here. Best idea is to just look at the rules!

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