every - singular, parts of a group, collectively (bij 3 of meer onderdelen), a class
all - plural, part of a whole group
each - singular, part of a group, individually, to emphasize (individuele onderdelen)
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Every child in the group visited each town out of the 5 towns.
All the chidren were allowed into the townhall together.
Each town had its own townhall, amazing.