YOU SAID:

I have a bun in the oven

INTO JAPANESE

私はオーブンでパンを持っています

BACK INTO ENGLISH

I have bread in the oven

INTO JAPANESE

オーブンにパンがあります

BACK INTO ENGLISH

There is bread in the oven

INTO JAPANESE

オーブンにパンがあります

BACK INTO ENGLISH

There is bread in the oven