1) strong - stronger - the strongest
2) lazy -  lazier - the laziest
3) thin  - thinner - the thinnest
4) simple - simpler - the simplest
                       или
 simple - more simple - the most simple
5) clever - cleverer - the cleverest
                       или
 clever - more clever - the most clever
6) careful - more careful - the most careful
7) interesting -  more interesting - the most interesting
8) hot - hotter - the hottest
9) gentle - gentler - the gentlest
                       или
 gentle - more gentle - the most gentle
10) easy - easier - the easiest
11) tiny - tinier - the tiniest
12) loud - louder - the loudest
13) soft - softer - the softest
14) quick - quicker - the quickest
15) noisy - nosier - the noisiest
16) high - higher - the highest
17) dangerous - more dangerous - the most dangerous
18) large - larger - the largest
19) good - better - the best
20) bad - worse - the worst