YOU SAID:

He drank way too many beers last night

INTO JAPANESE

彼は昨夜飲み過ぎたビールを飲みすぎた

BACK INTO ENGLISH

He drank too much beer that I had drunk last night.

INTO JAPANESE

彼は私が昨夜飲んだビールを飲みすぎた。

BACK INTO ENGLISH

He drank too much beer I drank last night.

INTO JAPANESE

彼は私が昨夜飲んだビールを飲み過ぎた。

BACK INTO ENGLISH

He drank too much beer I drank last night.