我不善于表达用英语怎么表达？

　　不得不说我是个不善于表达的人。

　　I've to say that I'm not an expressive people.

　　我是一个不善于表达的人。

　　I was a skill of the people.

　　他的确不善于决策。

　　He is really bad at making decisions.

　　我不善于记名字。

　　I have a bad memory for names.

　　Its history is expressive of the character and development of the people who possess it.

　　它的历史体现了其拥有者的性格特征和发展过程。

　　Perhaps all his poems were really love poems, expressive of love for someone

　　也许他所有的诗歌其实都是爱情诗，表现了对某个人的爱。