基本的英文書信格式應包括四大部分，日期，稱呼，正文，和落款（包括敬語）。信件開頭稱呼：寫給朋友，用“Dear+名”。如Dear Megan。寫給家人，用“My dear+ 稱呼”。如My dear father。
英語寫信開頭高級句子常用開始：
1、I was glad to hear you good news.非常高興聽見您的信息。
2、Forgive me for not writing sooner.諒解我沒有迅速復書。
3、It was very kind of you to reply so quickly.你可以迅速復書太好了。
4、I am sorry to hear that you have not been well.聽說您身體不好我很難過。
5、You asked me about【+problem question 等）,now let me give you some advice.你在來信中詢問我，現在，讓我給你一些建議。
英語寫信通用結尾用語1、Hope?to?hear?from?you?soon【as?early?as?posible】
2、Thanks?again?for?writing?about....
3、Please?give?my?love?/wish/regards?to
4、I?hope?to?hear?more?news?about.....
5、I、m?praying?for?your?soon?recovery.
6、Take?care?of?yourself.
7、I'm?looking?forward?to?your?early【favorable】?reply.
8、Thank?you?in?advace.
9、Please?remember?me?to?your?family.
10、Do?please?write?and?let?me?know?how?you?are?getting?on.