能组成的单词是 afraid，意思是害怕、惧怕，例如：

1、I started to feel afraid of going out alone at night.我开始害怕夜间单独外出了。

2、She seemed a little afraid of going inside.她好像有点害怕进去。

3、His mere presence made her feel afraid.他当时在场，这就足以让她害怕了。