英语共有十六种时态，其表现形式如下(以work为例)
一般时进行时 完成时 完成进行时
现在 work/ be working/ have worked/ have been working
过去 worked/ be working/ had worked/ had been working
将来 will work/ will be working/ will have worked/ will have been working
过去将来would work/ would be working/ would have worked/ would have been working
举例：
英语中有12个主要时态，都来自于三时（过去、现在、将来）
现在以I listen为例，举例英语中有12个主要时态如下所示：
一般现在时：I listen
现在进行时：I am listening
过去进行时：I was listening
现在完成时：I have listened
现在完成进行时：I have been listening
一般将来时：I shall listen”或“I will listen.”
将来进行时：I shall be listening
一般过去时：I listened
过去完成时：I had listened
过去完成进行时：I had been listening
将来完成时：I shall have listened
将来完成进行时：I shall have been listening
