- see — saw
- go — went
- have — had
- say — said
- fly — flew
- fall — fell
- put — put
- do — did
- be — was/were
- play — played
- want — wanted
- live — lived
- look — looked
- study — studied
- cry — cried
- smile — smiled
- try — tried
- collect — collected
Неправильные глаголы имеют особую форму Past Simple; у правильных глаголов добавляется окончание -ed с учётом правил написания.