Adjectives with two syllables can form the comparative either by adding -er or by adding MORE in front of the adjective. These adjectives form the superlative either by adding -est or by adding THE MOST in front of them. In many cases, both forms are used, although one is used more often than the other. If you are not sure whether a two-syllable adjective can take a comparative or superlative ending, play it safe and use more and the most instead. For adjectives ending in y, change the -y to an -i before adding the ending.
And finally, just like we have irregular nouns and verbs, we also have irregular adjectives. They have special forms for comparatives and superlatives and have to be learnt by heart.
Exercise 4: Choose the correct answer: