Be (is/are)

The word every refers to all individuals of a given concept. Concepts and individuals are defined when their names are used in at least one sentence.

Examples

Those examples show how to use the word every.

Example: A simple hierarchy of concepts. Lion and giraffe are inclusive of the concept of an animal.
Every giraffe is an animal.
Every lion is an animal.
Example: A simple relation rule.
Every giraffe eats a plant.