Comparatives and superlatives help us compare people, places, or things.
There are two ways to form comparatives. For most long adjectives, which have three or more syllables, we use more to form a comparative phrase with than. For example, "Sarah is more beautiful than Martha." With short adjectives, which have only one or two syllables, we add -er to the end of the word, as in, "Jacob is smarter than Ed." For short adjectives ending in y, like "happy," we drop the "y" and add -ier, as in, "Lucy is happier than Rob. She got the promotion at work and he didn't."
Similarly, we form superlatives with the most or the best, or by adding -est, depending on the length of the adjective. With long adjectives we say, "He is the most intelligent person I've ever met." With short adjectives we say, "Johnny is the fastest runner on the team." For short adjectives ending in y, we drop the "y" and add -iest, as in, "She is the prettiest girl in the world."
Comparatives and Superlatives Grammar Quiz
Comparatives and Superlatives Lessons: