Скласти 15 речень(слова дани у 3 формах) , надо show showed swown показувати sing sang sung спiвати sit sit sit сидiти sleep slept slept спати speak spoke spoken размовляти stand stood stood стояти swim swam swum плавати take took taken брати teach taught taught навчати tell told told казати think thought thought думати understand understood understood розумiти wear wore worn носити win won won перемагати write wrote written писати
Several times recently, I have shown you how to do this.
He has sung that song hundreds of times.
You sit on a sofa.
I had slept for two hours.
I have spoken in public on many occasions.
И так далее...