Distinguishing between all, both, each, and every for groups
All/Both + plural noun | Each/Every + singular noun
Not all students passed. / Neither (not both) answer is correct.
Did all students pass? / Did every student pass?
💡 Both = exactly two. All/Every = three or more. Each = two or more (individual focus).
✓Both children are sleeping.
✗Both child is sleeping.
Both + plural noun.
✓Every student has a textbook.
✗Every students have textbooks.
Every + singular noun + singular verb.
✓Each of the answers is correct.
✗Each of the answers are correct.
Each + singular verb (even with 'of the answers').