YOU SAID:
bush did [good things]
INTO JAPANESE
ブッシュは [良いもの]
BACK INTO ENGLISH
Bush is [good].
INTO JAPANESE
ブッシュは [良い] です。
BACK INTO ENGLISH
Bush is good.
INTO JAPANESE
ブッシュは良いです。
BACK INTO ENGLISH
Bush is good.
That didn't even make that much sense in English.