Sentence examples similar to agents must be present from inspiring English sources

The scarcity factor must be present.

Both parents must be present with minors.

The pathologic hallmark of sarcoidosis is an epithelioid cell granuloma; thus, some etiologic agent of sarcoidosis must be present or have been present within the sarcoid granuloma.

For example, to have scrapie, both an infectious agent and a susceptible genotype must be present.

The Foreign Agents Registration Act dictates that a "conspicuous statement" must be present on disseminated materials, disclosing the relationship between the firm and client.

America must be present there.

Moderate Muslims must be present".

The original lead singer must be present?

Sufficient electrolyte must be present as well.

But one must be present for them.

Both must be present to assure berries.