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Comparative compares 2 things (taller than), superlative compares 3 or more and points out the number one (the tallest).
Written by Bryan López, Profesor de inglés · Updated
The difference between comparative and superlative is the number of things you're comparing. Comparative is used to compare exactly 2 things: "She is taller than her brother." Superlative is used to compare 3 or more and point out which one is number one: "She is the tallest in her family."
If you're comparing exactly 2 things, use comparative: "This phone is better than that one." If you're comparing 3 or more, or talking about the whole group, use superlative: "This is the best phone I've ever had."
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Comparative: adjective + -er or more + adjective, followed by than (tall → taller, expensive → more expensive). Superlative: the + adjective + -est or the most + adjective, no than (tall → the tallest, expensive → the most expensive). Irregulars (good/better/best, bad/worse/worst) don't follow any rule.
Using the superlative when only 2 things are actually being compared: saying "the tallest of the two" instead of "the taller of the two." The formal rule is that with exactly 2 items you always use comparative, never superlative, even though you might hear the opposite in casual speech.
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Comparative compares exactly 2 things (taller than), superlative compares 3 or more and points out the number one (the tallest).
Comparative when comparing 2 things: "He is stronger than me." Superlative when comparing 3 or more, or talking about a whole group: "He is the strongest on the team."
Comparative: -er or more + than. Superlative: the + -est or the most, no than. Short adjectives use -er/-est, long ones use more/most.
"This book is more interesting than that one" (comparative, 2 books) vs. "This is the most interesting book I've read this year" (superlative, compared to everything read).
Formally, no. With exactly 2 items you always use comparative: "the taller of the two," not "the tallest of the two."
Because in some languages the equivalent of "the most" is sometimes used even when comparing just two things, while in English that 2 vs. 3+ distinction is a fixed rule.
Interactive exercises, real pronunciation, and the full lesson taught in English.