Past simple regular verbs

WHY REGULAR VERBS?

HOW DO YOU FORM PAST SIMPLE?
Regular past simple forms are formed by adding -ed to the infinitive of the verb.
start → started
kill → killed
jump → jumped

THAT SEEMS EASY!
Yes, but there are some spelling rules. If a verb ends in -e, you add -d.
agree → agreed
like → liked
escape → escaped
If a verb ends in a vowel and a consonant, the consonant is usually doubled before -ed.
stop → stopped
plan → planned
If a verb ends in consonant and -y, you take off the y and add -ied.
try → tried
carry → carried
But if the word ends in a vowel and -y, you add -ed.
play → played
enjoy → enjoyed

BUT WAIT!!! THAT’S NOT ALL…
There are 3 different pronunciations for «ed».

Allophonic variations in regular verbs in past tense “ed”
/d/ after a vowel
or voiced sound
/t/ after an unvoiced
sound
/Id/ after the sounds
/t/ or /d/
played
cleaned
snowed
brushed
laughed
pushed
waited
painted
landed