Marie/do chores/ yesterday ( had to) Bobby/ study English/ last night ( not have to) The knights/ pull the sword/ out of the st
Marie/do chores/ yesterday ( had to) Bobby/ study English/ last night ( not have to) The knights/ pull the sword/ out of the stone ( could not) John/ ride a bike/when he was three ( could not)
Marie had to do chores yesterday. Bobby didn"t have to study English last night. The knights could not pull the sword out of the stone. John could not ride a bike when he was three.