heard與say這兩個英語單詞中heard是過去式，它的原形是hear，意思是“聽到”。如：He heard someone singing in the next room just now. 他剛剛聽到有人在隔壁房間唱歌。

say是一個動詞原形，意思是“說”，它是一個不規(guī)則動詞，過去式是said。如：He said good night.

hear是動詞詞性的詞。

Did you ever hear anything so quaint ?這樣荒廖的話，你以前聽過沒有？

I was very sad indeed to hear about it .我聽到這件事，確實非常難過。

How often do you hear from your sister ?你多長時間接到你姐姐一次信？

once motion stops, hearing is impaired .一旦動作停止，聽覺就失靈。

You must hear his side of things now .你現(xiàn)在得聽聽他這方面的看法。

Hearing the words , he trembled with anger .聽了這話，他氣得發(fā)抖。

Did you ever hear anything so scandalous ?你聽說過這么丟人的事嗎？

Did you ever hear anything so cool ?這樣不近情理的話你以前聽見過嗎？

I could hear her conferring with someone .我聽見她和某人嘀咕了幾句。

She shouted that she could n't hearproperly .她大聲說她聽不清楚。

hear+d是hear的過去式和過去分詞，也就是heard。而hear是原形。

過去式 heard，過去分詞 heard，現(xiàn)在分詞 hearing，第三人稱單數(shù) hears

She felt frightened because she heard footsteps behind her.

她感到害怕，因為她聽到身后有腳步聲。

2

I haven't heard from him for a long time.

我已經(jīng)很久沒有他的消息了。

3

The procuratorate should hear the case impartially.

檢察院應秉著公正的態(tài)度去審理案件。

hear的過去式和過去分詞分別是heard, heard