Spelling Rules: Past Tense of Regular Verbs
The following rules will help you learn how to add ~ed to the end of verbs to form the past tense. These rules only apply to verbs that use the ~ed ending to form their past tense. Here is a list of the most common irregular verbs that do not use ~ed to form their past tense.
believe - believe + ~d = believed
race - race + ~d = raced
hop - hop + ~ped = hopped
skip - skip + ~ped = skipped
snoop - snoop + ~ed = snooped
look - look + ~ed = looked
reign - reign + ~ed = reigned
watch - watch + ~ed = watched
cry - cri + ~ed = cried
study - studi + ~ed = studied
stay - stay + ~ed = stayed
play - play + ~ed = played
Exceptions to the rules.
Do not double the consonant if the verb ends in ~x.
Do not double the ~w in snow. (snow - snow + ~ed = snowed)
Two syllable verbs
Two syllable verbs that end in one vowel and one consonant and have the stress on the first syllable form their past tense by simply adding ~ed. DO NOT double the last consonant.
visit - visit + ~ed = visited
open _ open + ed = opened
Two syllable verbs that end in one vowel and one consonant and have the stress on the last syllable form their past tense by doubling the final consonant and adding ~ed.
occur - occur + ~red = occurred
prefer - prefer + ~red = preferred