Intensified superlatives (aller-)

The Ultimate Superlative: "aller-"

To emphasize a superlative in German—like "the very best" or "the fastest of all"—attach the prefix aller- to the superlative form of an adjective or adverb.

Use it with am for adverbs or predicate adjectives:

Do you know which breed is the very most expensive?
Weißt du, welche Rasse am allerteuersten ist?

Or use it with a definite article (der/die/das) when the superlative stands on its own:

This breed is the very oldest.
Diese Rasse ist die allerälteste.

Declining the Intensified Superlative

When an aller- superlative comes directly before a noun, it takes standard adjective endings. The prefix doesn't change how the word declines.

That is the very most beautiful trophy of the exhibition.
Das ist der allerschönste Pokal der Ausstellung.

It works seamlessly across all cases, just like a regular adjective:

The champion gets the very largest trophy.
Der Champion bekommt den allergrößten Pokal.
The dog with the very longest ribbon wins.
Der Hund mit der allerlängsten Schleife gewinnt.

"Sollen" for Hearsay

The modal verb sollen (usually "should") can also express hearsay. In this context, it translates to "is said to" or "is supposed to."

The breeder is said to be the very best.
Der Züchter soll der allerbeste sein.
Purebred dogs are said to be the very most beautiful.
Reinrassige Hunde sollen am allerschönsten sein.