If a short verb ends with a consonant-vowel-consonant, double the last letter and then add ed. ...
In longer words, if the last syllable of the verb ends with a consonant-vowel-consonant and that syllable is stressed, double the last consonant and then add ed. ...
The Past Simple Tense
Add ed to most verbs. ...
If a short verb ends with a consonant-vowel-consonant, double the last letter and then add ed. ...
In longer words, if the last syllable of the verb ends with a consonant-vowel-consonant and that syllable is stressed, double the last consonant and then add ed. ...
If the verb ends in e, just add d.