Например . Big -bigger , happy-........., tall-.........., fat-......, clever-........., short-........, thin-.........., slim-........., fast-........ бысрей пожалуйста
Happy-happier Tall-taller Fat-fatter Clever-cleverer Short-shorter Thin-thinner Slim-slimmer Fast-faster
Happy-happier, tall-taller, fat-fatter, clever-cleverer, short-shorter,thin-thinner, slim-slimmer, fast-faster