This is an update from http://www.nick.org/2007/08/jerrys_language.php.
These are all words that Jerry is using regulary - is pronunciation isn't perfect, of course. =)
"i want"
car
truck
cheese
wheel
daddy
mama
bus
feet
boy
toy
mixer
fire truck
backhoe
phone call
popcorn
ambulance
big
small
go
nose
"up high"
down
orange juice
video
おしまい
だっこ
もっと
ない
おもい
みず
とり
どうぞ
かく
がいこつ
まる
ひこき
大きい
バビーカー
いたい
あし
みみ
かお
ぼし
め
て
Jerry appears to be learning a new word every other day now. Wow!