YOU SAID:

my mom said to your mom that we are cool

INTO JAPANESE

私のお母さんはあなたのお母さんに、私たちはクールだと言いました

BACK INTO ENGLISH

my mom told your mom we were cool

INTO JAPANESE

私の母はあなたのお母さんに私たちはクールだと言いました

BACK INTO ENGLISH

my mom told your mom we were cool