Verbs usually describe an activity, a condition or an event. we can also nominalize verbs, which means converting a verb into a stand-alone noun by putting an article before the infinitive form of the verb. Nominalized infinitives always take a neuter article, and like other nouns are written with a capital letter and declined.

Example:

grillen -> das Grillen

Yanis findet das Grillen wichtiger als das Training.

essen -> das Essen

Nico soll die Tabletten nach dem Essen nehmen.

schlafen gehen -> das Schlafengehen

Nico soll die Salbe vor dem Schlafengehen benutzen.