Past Simple Verbs
Past simple verbs are the form of the verb we use in the past simple tense.
Making Past Simple Verbs
We make the past simple form of regular verbs by adding -ed to the end.
There are special spelling rules for adding -ed to some words. Have a look at spelling rules for words ending in -ed.
There is not set rule for making the the past simple form of irregular verbs. You have to learn and remember them.
You can find the past simple forms of common irregular verbs in the irregular verb tables.