YOU SAID:
May I have a pickle, please?
INTO JAPANESE
ピクルスを頂けますか。
BACK INTO ENGLISH
May I have some pickles?
INTO JAPANESE
ピクルスがありますか。
BACK INTO ENGLISH
Do you have pickles?
INTO JAPANESE
ピクルスはありますか?
BACK INTO ENGLISH
Do you have pickles?
That didn't even make that much sense in English.