Regular verbs: Subject + Verb (-ed) + Object
Irregular verbs: Subject + Verb (past form) + Object
Find more infrmation on English irregular verbs here
The past simple in English uses one form for all persons (with the unique exception of to be).
We use the Past Simple to:
talk about completed or finished events
On a fundamental level, if an action is completed or finished then we use the past simple to talk about it.
I ate lunch at home yesterday
I wanted to be a journalist when I was younger
He played cricket in the 1990's
Verbs in the past do not take a new form in negative or question structures, we use the auxiliary verb (to do) to indicate past. The specific exception is to be, which is used without an auxiliary
Regular verbs in the past have only two spelling rules that create exceptions to the INFINITIVE + ed structure. If the verb is a single syllable single vowel followed by a consonant, we simply double the consonant as well as adding the -ed
Secondly, if the INFINITIVE ends in a consonant + y we change the -y for an -i before the -ed
Irregular verbs behave differently and you can find more information about them here
Regular verbs in the pas have three pronunciation patterns that are about sound, not spelling.