Add -er to a short adverb to compare two actions.
Add -est to a short adverb to compare more than two actions.

The words MORE and MOST are usually used to form comparisons with adverbs that end in -ly and with longer adverbs (more than 2 syllables).

         Dan ran quickly.
            Amy ran more quickly than Dan.
            Noah ran the most quickly of all.

Use more to compare two actions. Use most to compare more than two actions. When you use more and most, do not use the ending er or est.

Directions: Tell which form of the adverb in parentheses correctly completes each sentence.

1. Ann's team started (sooner, soonest) than mine.
2. The first clue was hidden the (more, most) carefully.
3. Lynn solved it (more, most ) quickly than I.
4. Sal searched the (harder, hardest) of all.
5. The next clue was the (harder, hardest) of all.
6. Of all the trees, which grows the (taller, tallest)?
7. Mark climbed (higher, highest) than anyone else.
8. The las clue puzzled us the (more, most) deeply.
9. Juan answered this (more, most) easily than I.
10. Barry cheered the (louder, loudest) of us all.
11. The Phoenicians sailed the (more, most) skillfully of all.
12. Their ships crossed the sea (faster, fastest) than any other.
13. Columbus tried the (harder, hardest) to find a route to India.
14. Ponce de Leon searched the (more, most) unsuccessfully.
15. He looked (longer, longest) than anyone else for the Fountain of Youth in Florida.
16. Cortes treated the Aztecs (more,most) cruelly than others.
17. Robert Peary reached the North Pole (sooner, soonest) than others.
18. No one in the Lewis and Clark expedition crossed the Rockies (more, most) joyfuly thanSacajawea.
19. Jacues-Yves Cousteau has shown us undersea life (more, most) clearly than any other diver.
20. He has journeyed (deeper, deepest) into the ocean than the others.

Write the form of adverb that shows a comparison.
1. People fly more often than they used to.
2. An airplane travels faster than a train does.
3. The Concorde flies the fastest of all.
4. Passengers fly more comfortably in large planes.
5. Airports are planned more carefully now.
6. Air traffic has increased more rapidly than expected.
7. Planes take off from Chicago more frequently than from Miami.
8. Planes leave Atlantathe most frequently of all.
9. Passengers move more quickly on moving sidewalks than on foot.
10. Trams carry people the most quickly.

Use more or most to complete the sentence.
11. Airports are used (more,most) heavily in the summer.
12. Which airport is used the (more,most) heavily of all?
13. Air traffic in our area has increased (more,most) steadily than in other areas.
14. Airports near a city are reached (more, most) easily than those farther away.
15. Do travelers use airplanes (more, most) steadily than in other areas?
16. Some people fly (more, most) eagerly than others.
17. Perhaps pilots fly the (more,most)happily of all.

Write each sentence. Use the correct comparative form of the adverb in parentheses. Underline the word.

18. Kim lives _____ to the airport than I do. (close)
19. Planes fly ______ over her house than over mine. (low)
20. Planes fly the _____ possible near the airport. (low)
21. Kim sees planes _____ than most people do . (clearly)
22. She can identify them _____ than I can. (accurately)
23. She flies the _____ of all her friends. (frequently)
24. Planes interest her ______ than anything else she does. (deeply)
25. She reads ______ about airplanes than aabout any other topic. (often)

Writing Practice:
Imagine that you are part of planning a treasure hunt. Write some clues. Then identify the adverbs that compare.