Regular and Irregular Verbs : Spelling of Regular Verbs

There are two types of past simple verb form - regular verbs and irregular verbs.

1. Regular Verbs end in -ed with various spellings depending on the individual verb.
1. We add -ed to most verbs to form the regular verb form.
1. need - needed
2. watch - watched
3. kiss - kissed
4. rest - rested
5. look - looked
6. cook - cooked
7. fetch - fetched
8. point - pointed
9. form - formed
10. sponsor - sponsored
2. But, if the verb contains -e, just add -d.
1. chase - chased
2. base - based
3. bake - baked
4. blame - blamed
5. care - cared
6. race - raced
7. waste - wasted
8. note - noted 
9. hope - hoped
10. slice - sliced
3. For verbs ending in a form of [consonant + y], we replace the "y" with "i", then add -ed.
1. study - studied
2. hurry - hurried
3. vary - varied
4. apply - applied
5. carry - carried
6. query - queried
7. marry - married
8. dry - dried
9. cry - cried
10. pry - pried
11. try - tried
12. copy - copied
13. deny - denied
14. tidy - tidied
15. excite - excited
4. But, if the verb ends in [vowel + y], we don't replace the "y", instead, just add -ed
1. play - played
2. stay - stayed
3. fray - frayed
4. enjoy - enjoyed
5. obey - obeyed
6. annoy - annoyed
7. deploy - deployed
8. employ - employed
9. destroy - destroyed 
10. stray - strayed
5. If the verb ends in [consonant + one vowel + one consonant], we double the last consonant, then add -ed.
1. stop - stopped
2. mop - mopped
3. ban - banned
4. trap - trapped
5. sip - sipped
6. swap - swapped
7. whip - whipped
8. pin - pinned
9. slip - slipped 
10. hop - hopped
6. We also double the last consonant for some two-syllable verbs when the stress is on the last syllable.
1. refer - referred
2. prefer - preferred
3. compel - compelled
4. confer - conferred
2. Irregular verbs have various forms. There are no rules on the spelling of irregular verbs. Learners have to memorize the irregular past forms by themselves. You can find the past form of irregular verbs in the dictionary or at the end of your English course book
1. cut - cut
2. shut - shut
3. go - went
4. be - was/were
5. come - came
6. catch - caught 
7. swim - swam
8. write - wrote
9. sing - sang
10. draw - drew