Pikachu language

Did you guys know that pikachu has its own language??

Pika Pikachu = my name is Pikachu
Pi? = What?
Pi-ka = yes
Pi-ka-chu? = are you ok?

Pikaaaaa-chuuuuuu = thunder
piiika-chuuuuu = thunderbolt
Pikapikapika... pi-ka = volt tackle
pipipipipi-chuchuchu = agility
Chuuu-pika = iron tail