Ïðèëàãàòåëüíûå ÷àñòî èçìåíÿþò ôîðìó. Ýòî âûçâàíî òåì, ÷òî íåîáõîäèìî ïîêàçàòü, â êàêîé ñòåïåíè ïî îòíîøåíèþ ê ÷åìó-ëèáî ïðåäñòàâëåíî äàííîå êà÷åñòâî.  ãðàììàòèêå ýòà ñòåïåíü íàçûâàåòñÿ ñðàâíåíèåì (comparison).
 àíãëèéñêîì ÿçûêå åñòü 3 ñòåïåíè ñðàâíåíèÿ: ïîëîæèòåëüíàÿ (positive degree), ñðàâíèòåëüíàÿ (comparative degree) è ïðåâîñõîäíàÿ (superlative degree).
Ïîëîæèòåëüíàÿ ñòåïåíü â äåéñòâèòåëüíîñòè íå ÿâëÿåòñÿ ñòåïåíüþ ñðàâíåíèÿ, òàê êàê îíà íå ïðåäñòàâëÿåò ñîáîé ñðàâíåíèÿ. Ïîçèòèâíàÿ ñòåïåíü ÿâëÿåòñÿ ïðîñòîé ôîðìîé ïðèëàãàòåëüíîãî. Îíà ïîêàçûâàåò, ÷òî äàííîå êà÷åñòâî ïðèñóòñòâóåò, íî íå ñðàâíèââàåò åãî ñ ÷åì-ëèáî åùå.
That is a beautiful
rose.
It is a very cold day.
Peter is very energetic.
Ñðàâíèòåëüíàÿ ñòåïåíü ïðèëàãàòåëüíîãî èñïîëüçóåòñÿ ïðè ñðàâíåíèè äâóõ ëþäåé èëè âåùåé. Ñðàâíèòåëüíàÿ ñòåïåíü ïîêàçûâàåò, ÷òî êà÷åñòâî, âûðàæàåìîå ïðèëàãàòåëüíûì, ïðèñóòñòâóåò â áîëüøåé èëè ìåíüøåé ñòåïåíè ó îäíîãî èç äâóõ ñðàâíèââàåìûõ ëþäåé èëè ïðåäìåòîâ. Ñðàâíèòåëüíàÿ ñòåïåíü ïî÷òè âñåõ îäíîñëîæíûõ ïðèëàãàòåëüíûõ îáðàçóòñÿ ïóòåì äîáàâëåíèÿ ê ïîëîæèòåëüíîé ñòåïåíè ïðèëàãàòåëüíîãî ñóôôèêñà er:
Peter is stronger
than Mike.
This desk is larger than that one.
Ïðåâîñõîäíàÿ ñòåïåíü ïðèëàãàòåëüíîãî èñïîëüçóåòñÿ òîãäà, êîãäà ñðàâíèâàþòñÿ áîëåå äâóõ ëþäåé èëè âåùåé. Ïðåâîñõîäíàÿ ñòåïåíü ïîêàçûâàåò, ÷òî êà÷åñòâî, âûðàæàåìîå ïðèëàãàòåëüíûì, îáëàäàåò íàèáîëüøåé/íàèìåíüøåé ñòåïåíüþ ó îäíîãî èç ëþäåé èëè îäíîé èç âåùåé, êîòîðûå ñðàâíèâàþòñÿ ìåæäó ñîáîé.
Our flat is the largest
flat in the block.
Jimmy is the smallest boy in his class.
| Ïîëîæèòåëüíàÿ | Ñðàâíèòåëüíàÿ | Ïðåâîñõîäíàÿ |
| near | nearer | nearest |
| sharp | sharper | sharpest |
| dark | darker | darkest |
| keen | keener | keenest |
| long | longer | longest |
Ïðèëàãàòåëüíûå, ñîñòîÿùèå èç 2 è áîëåå ñëîãîâ, îáû÷íî îáðàçóþò ñòåïåíè ñðàâíåíèÿ ïóòåì ïðèáàâëåíèÿ ê ïîëîæèòåëüíîé ôîðìå ñëîâ more è most. More èñïîëüçóåòñÿ ïðè ñðàâíåíèè 2 ëþäåé èëè âåùåé. Most èñïîëüçóåòñÿ ïðè ñòðàâíåíèè áîëåå 2 âåùåé è ëþäåé. Less è least èñïîëüçóþòñÿ òî÷íî òàêæå.
| Ïîëîæèòåëüíàÿ | Ñðàâíèòåëüíàÿ | Ïðåâîñõîäíàÿ |
| fragrant | more fragrant | most fragrant |
| famous | more famous | most famous |
| precious | more precious | most precious |
| difficult | more difficult | most difficult |
Èíîãäà îäíîñëîæíûå ïðèëàãàòåëüíûå îáðàçóþò ñòåïåíè ñðàâíåíèÿ ñ ïîìîùüþ more è most.  íåêîòîðûõ ñëó÷àÿ ïðèëàãàòåëüíûå, ñîñòîÿùèå èç 2 è áîëåå ñëîãîâ, îáðàçóþò ñòåïåíè ñðàâíåíèÿ ïóòåì ïðèáàâëåíèÿ er è est. Çäåñü íåò îñîáûõ ïðàâèë, èñïîëüçóåòñÿ òà ôîðìà, êîòîðàÿ áîëåå áëàãîçâó÷íà. Ìíîãîñëîæíûå ïðèëàãàòåëüíûå, îêàí÷èâàþùèåñÿ íà y, îáðàçóþò ñòåïåíè ñðàâíåíèÿ ïóòåì ïðèáàâëåíèÿ er è est. Ïðè ýòîì y ìåíÿåòñÿ íà i.
| Ïîëîæèòåëüíàÿ | Ñðàâíèòåëüíàÿ | Ïðåâîñõîäíàÿ |
| silly | sillier | silliest |
| dainty | daintier | daintiest |
| clumsy | clumsier | clumsiest |
| handy | handier | handiest |
| noisy | noisier | noisiest |
Íåêîòîðûå
ïðèëàãàòåëüíûå
îáðàçóþò ñòåïåíè
ñðàâíåíèÿ
íå
ïî ïðàâèëàì.
À íåêîòîðûå
ïðèëàãàòåëüíûå
âîîáùå íå
îáðàçóþò ñòåïåíåé
ñðàâíåíèÿ.
Pronouns Nouns Verbs Adjectives Adverbs Prepositions Conjunctions Interjections