not all / not every
Negation with All and Every
Check whether the negative denies the whole group claim or describes each member.
How It Works
Not All Is Not None
Not all the stalls open today. denies the claim that every stall is open. It does not, by itself, tell you exactly how many are open or closed.
Not Every Works Similarly
Not every bus stops here. warns that the stopping pattern does not apply to the whole set. It differs from saying that no buses stop here.
Make the Intended Number Clear
Negation in a longer clause can be easy to misread, especially with omitted words. If the difference matters, add a clear follow-up: Three are open. or None are open. Context supplies the precise outcome rather than a mechanical word-for-word rule.
Examples (3)
- Not all the stalls open today. Three are open.
Not every stall is open today; three are open.
The follow-up gives a count that not all alone does not provide.
- Not every bus stops here. Check the route first.
Some bus routes do not stop here, so check the route first.
This is not a claim that no bus stops here.
- None of the boxes are empty.
Every box contains something.
None makes a claim about every member that is stronger than not all are empty.
How It Connects
Learn This First
Identify the group quantified by all before determining how negation changes its scope.