1.肯：I like dancing.疑：Do you like dancing?
2.肯：You will have a picnic with us.否：You will not have a picnic with us.（其实最好把you变为I,把us变为you）
3.肯：He went to work by bus last year.否：He didn't go to work by bus last year.
4.肯：She is going to play badminton next Sunday.否：She isn't going to play badminton next Sunday.
5.肯：She is cooking a meal.否：She isn't cooking a meal.
6.肯：You had a good time.否：You didn't have a good time.（最好把you变为I）