I dare not buy all these things.

我不敢买这么多东西。

I dare not speak in public.

我不敢在公众场合演讲。

I dare not tell him the truth.

我不敢告诉他真相。

I dare not try that dangerous sport.

我不敢尝试那种危险的运动。

I dare not try this dangerous sport.

我不敢尝试这种危险的运动。

I dare not go to that dark room alone.

我不敢一个人去那个黑暗的房间。

I dare not disturb my father while he is working.

我不敢打扰他正在工作的父亲。

I dare not to stay home alone at night.

我不敢夜晚一个人待在家里

But i dare not to try this fashionable thing.

但是我不敢做这种先驱的事。

You are really able. I dare not think of this.

你真的有那个能力。我不敢想这个。