Both Manuel and Aliki could swim when they were 12.
Neither Manuel and Aliki could dive when they were 6.
Aliki could not dive when she was 12, but Manuel could not.
Both Manuel and Aliki could read when they were 6,12.
Aliki could not ride a bike when he was 6, but Manuel could.
Both Manuel and Aliki could ride a bike when they were 12.
Aliki could not play an instrument when he was 6 but Manuel could.
Both Manuel and Aliki could play an instrument when they were 12.
Neither Manuel and Aliki could speak English when they were 6.
Both Manuel and Aliki could speak English when they were 12.