Irregular Past Tense (Advanced) Advanced List (PDF) List 1 Base to Past Past to Base Mixed Base to Past Past to Base Mixed List 2 Base to Past Past to Base Mixed Base to Past Past to Base Mixed Base to Past Past to Base Mixed Base to Past Past to Base Mixed List 3 Base to Past Past to Base Mixed Base to Past Past to Base Mixed Base to Past Past to Base Mixed Base to Past Past to Base Mixed List 4 Base to Past Past to Base Mixed Base to Past Past to Base Mixed Base to Past Past to Base Mixed Base to Past Past to Base Mixed