YOU SAID:

Hello I was cool today

INTO JAPANESE

こんにちは私は今日涼しかった

BACK INTO ENGLISH

Hi I am today cool

INTO JAPANESE

こんにちは私は今日涼しいです

BACK INTO ENGLISH

Hello, I'm cool today

INTO JAPANESE

こんにちは、今日はクールです

BACK INTO ENGLISH

Hi, it's cool today

INTO JAPANESE

今日は涼しいです。

BACK INTO ENGLISH

It's cool today.

INTO JAPANESE

今日は涼しいです。

BACK INTO ENGLISH

It's cool today.