ἀναπηδάω I jump up
καταπηδάω I jump down
When the alarm-clock rings we ἀναπηδῶμεν
Sit down on an ant-hill and you βοᾷς καὶ ἀναπηδᾷς
And when talking about future jumpings up and down:
ἀναπηδήσω I'm going to jump up
καταπηδήσω I'll jump down
When the alarm-clock rings we'll ἀναπηδήσομεν
Sit down on an ant-hill and you will βοήσης καὶ ἀναπηδήσης