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all, each, every, and both (and maybe some others with the same sort of inclusive meaning) are all less than optimal as subjects of a negated verb.

What does less than optimal mean?
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Hi,

all, each, every, and both (and maybe some others with the same sort of inclusive meaning) are all less than optimal as subjects of a negated verb.

What does less than optimal mean?

Less than the best possible in the situation.

Best wishes, Clive