YOU SAID:

While you were partying, I studied the blade.

INTO JAPANESE

あなたがパーティーをしている間に、私は刃を研究しました。

BACK INTO ENGLISH

While you were at the party, I studied the blade.

INTO JAPANESE

あなたがパーティーにいる間に、私は刃を調べました。

BACK INTO ENGLISH

While you were at the party, I checked the blade.

INTO JAPANESE

あなたがパーティーにいる間に、刃を確認しました。

BACK INTO ENGLISH

I checked the blade while you were at the party.

INTO JAPANESE

あなたがパーティーをしている間に刃を見てみました。

BACK INTO ENGLISH

I looked at the blade while you were having a party.

INTO JAPANESE

パーティーをしている時に刃を見た。

BACK INTO ENGLISH

I saw the blade when I was having a party.

INTO JAPANESE

パーティーの時に刃を見た。

BACK INTO ENGLISH

I saw the blade at the party.

INTO JAPANESE

パーティーで刃を見た。

BACK INTO ENGLISH

I saw the blade at the party.