Infinitives and Gerunds are verb forms that often act like nouns in a sentence.

Infinitives are the "to + verb" form, like "to run" or "to study." They can express purpose, intention, or goals (e.g., "I want to learn Spanish.").

Gerunds are verbs ending in "-ing" used as nouns, like "running" or "studying." They often describe activities or things we enjoy, avoid, or practice (e.g., "She enjoys reading.").