means you need a better timing strategy, but get the concepts!

So hard to keep the EXCEPT in mind

GOT IT RIGHTTT FINALLY

all → most → some

all is sufficient for most.

most is sufficient for some.

The point here is to drill down on the actual sufficient condition in a sentence where you might not have explicit indicator words beside it. Since (3) and (4) were introduced by the "if" whereas (1) and (2) are placed far away, this was done to emphasize the rule.

Taking the counter-positive of the whole sentence will make it hard to identify the "real" sufficient and necessary relationship.

I hope this makes sense!

I have the same set up!

that can help but as he said, the list is under-inclusive and it's impossible to write down all the indicators. but it could be a start, you could try memorizing the most frequently used indicators!

I'm interested