让某人放心的英文

He is a man that you can rely on him.He is a man that you will worry about him.

reassurance[9ri:E`FJErEns]n.放心,安心securely[sI`kjJElI]adv.安心地, 安全地reassure 使某人安心他告诉我他没事时，我安心咯When he told me he was fine , i felt reassured

He is a person to worry about/to set one's mind at rest.

Worrying ReassuringWorry sbmake sb Reassured

rest assured 放心don't worry 别担心set one's heart at rest 安心rely upon it 放心take it easy 放轻松,别紧张想到的就这些，都是比较口语化的，根据不同场合来用吧~基本都可以互用的~