not hear的过去式

过去式是did not hear，例如：

1.He called out to me but I did not hear him.他大声叫喊，但我没听见。

2.Deep in thought, he did not hear the doorbell ring.他陷入沉思之中，没听见门铃响。

3.We did not hear a peep out of the baby all night.我们整夜都没听到婴儿出声。