This answer includes moves used by both Froakie and Frogadier, in addition to Greninja.
Water Pulse
Bubble
Pound
Double Team
Cut
Aerial Ace
Water Shuriken
It also combined some moves to form new ones. The moves combined include:
Rock Tomb + Double Team
Cut + Flying Press (used by Hawlucha)
Cut + Ice Punch
Ash's Greninja (Bulbapedia)
