Rules for adding -ed to regular English verbs

Past simple: Rules for adding -ed to regular English verbs

To be in the simple past of regular verbs in English, we need to add -ed to the infinitive without to. To this end we will consider the following rules:

1. Overall add -ed to all regular verbs.
    wash washed finish → → → finished talk Talked

2. verbs ending in -e, just add a -d.
    live like → → lived liked

3. verbs ending in consonant + -y, change the "y" to "i" and add -ed (= -ied)
    Studied carry study → → → Carried try tried

4. The verbs that end in a vowel + -and added -ed.
    play → played

Special cases

The verbs that end in a vowel + consonant (stop, ban, Occur, open, offer ...)

a) if the accent falls on the vowel of the last syllable, it bends
     stop stopped → → plan → planned ban banned Occur → occurred

Except verbs ending in "y" and "w"
    → play → played show Showed

b) If the accent does not fall on the vowel of the last syllable, it does not bend.
    Offered open offer → → opened
    
Except verbs ending in "l" folding "l" although the accent falls not spare the last syllable.
Travelled cancel travel → → canceled

Care!
Verbs of one syllable with two vowels do not double the consonant.
 → cook cooked
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