There are two basic groups of helping verbs:
Primary
Modal
There are three primary helping verbs:
have: has, have, and had
do: do, does, and did
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21,27,23
21 is the smallest number.