YOU SAID:

I felt my shoulders relax as he continued:

INTO JAPANESE

彼が続けるにつれて、私は肩がリラックスしていると感じました:

BACK INTO ENGLISH

As he continued, I felt my shoulders relaxed:

INTO JAPANESE

彼が続けるにつれて、私は肩がリラックスしたのを感じました:

BACK INTO ENGLISH

As he continued, I felt my shoulders relaxed: