*sigh* It’s as though some folks have a complete disconnect between their brains and any expression of language. “Every task does not need to be completed” ? “Not every task needs to be completed.” The first is the equivalent of “NO task needs to be completed,” as in none of them, zero, zilch, naught. The second =~= “Only some tasks need to be completed.” People who say/write the first when meaning the second have more than a few screws loose.