פעלים יוצאי דופן

יש פעלים שמשתנים לגמרי, ואותם לומדים בעל פה: go → went, see → saw, eat → ate, sit → sat, write → wrote, sleep → slept, come → came, have → had, buy → bought, take → took, leave → left. והפועל be: I was, he was, we were, they were.