YOU SAID:

I bought a boat a couple days ago

INTO JAPANESE

私は数日前にボートを買った

BACK INTO ENGLISH

I was a few days ago I bought the boat

INTO JAPANESE

私は数日前、私はボートを買った

BACK INTO ENGLISH

I a few days ago, I bought a boat

INTO JAPANESE

私は数日前、私はボートを買った

BACK INTO ENGLISH

I a few days ago, I bought a boat