YOU SAID:

joined and didn't say a word

INTO JAPANESE

参加して一言も言わなかった

BACK INTO ENGLISH

I joined and didn't say a word

INTO JAPANESE

私は参加しましたが、一言も言わなかった

BACK INTO ENGLISH

I joined, but didn't say a word

INTO JAPANESE

参加しましたが、一言も言わなかった

BACK INTO ENGLISH

I participated, but I didn't say a word

INTO JAPANESE

参加しましたが、一言も言いませんでした

BACK INTO ENGLISH

I participated, but I didn't say a word