YOU SAID:

I went to the party with my friend Martha but I couldn't find the cheese

INTO JAPANESE

友達のマーサとパーティーに行ったけどチーズが見つからなかった

BACK INTO ENGLISH

I went to a party with my friend Martha, but I couldn't find any cheese.

INTO JAPANESE

友達のマーサとパーティーに行ったのですが、チーズが見つかりませんでした。

BACK INTO ENGLISH

I went to a party with my friend Martha and couldn't find any cheese.

INTO JAPANESE

友達のマーサとパーティーに行ったのですが、チーズが見つかりませんでした。

BACK INTO ENGLISH

I went to a party with my friend Martha and couldn't find any cheese.