Adverbs modify adjectives, verbs, or other adverbs. They tell us how, when, and where things happen. They express quantity, intensity, frequency, and opinions.
1 – Adverbials of manner tell us how things happen or the way in which something happens. They are the largest group of adverbs and are mostly formed adding -ly to their corresponding adjective.
2 – Adverbials of place tell us where things happen.
3 – Adverbials of time tell us when something happens.
4 – Adverbials of probability tell us how sure we are about a situation or event.