Образуйте сравнительную и превосходную степень следующих слов: big, cold, useful, dangerous, beautiful, good, bad, old, far, clean, slow, dirty, healthy, friendly, modern, expensive, noisy, boring, quit, interesting.

Big - bigger - the biggest

cold - colder - the coldest

useful - more useful - the most useful

dangerous - more dangerous - the most dangerous

beautiful - more beautiful - the most beautiful

good - better - the best

bad - worse - the worst

old - older - the oldest

far - farer - the farest

clean - cleaner - the cleanest

slow - slower - the slowest

dirty - dirtier - the dirtiest

healthy - healthier - the healthiest

friendly - friendlier - the friendliest

modern - moderner - the modernest

expensive - more expensive - the most expensive

noisy - noisier - the noisiest

boring - boringer - the boringest

quit - quiter - the quitest

interesting - more interesting - the most interesting