Для образования Past Simple правильных глаголов добавляем окончание -ed. Для неправильных глаголов используем вторую форму глагола.
* To stay - stayed
* To get - got
* To open - opened
* To show - showed
* To help - helped
* To clean - cleaned
* To think - thought
* To write - wrote
* To be - was/were
* To make - made
* To dance - danced
* To work - worked
* To swim - swam