Words and phrases that tell where an action is done are called adverbs of place.

Example: A boy sat at the foot of the mountain.

Words and phrases that tell when an action is done are called adverbs of time.

Example: The couple recently donated money to their chosen charity.

Words that tell how an action is done are called adverbs of manner. Most adverbs are formed by adding -ly at the end of the word.

Example: The pupils excitedly entered their classroom.

Words that tell how often an action is done are called adverbs of frequency. An adverb of frequency comes before a verb except a be verb.

Examples:

The bright girl is seldom absent in class. (Adverb of frequency comes after the be verb "is")

My friend always sends me text messages that are inspirational. (Adverb of frequency comes before the action word "sends")