it is necessary(important...)that sb should do这种句型的虚拟后面should do的形式可以换成过去式的形式吗?比如it is necessary that we arrived there earlier比如it is high time的虚拟这两种就都可以

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itisnecessary(important...)thatsbshoulddo这种句型的虚拟后面shoulddo的形式可以换成过去式的形式吗?比如itisnecessarythatwearrive

it is necessary(important...)that sb should do这种句型的虚拟后面should do的形式可以换成过去式的形式吗?比如it is necessary that we arrived there earlier比如it is high time的虚拟这两种就都可以
it is necessary(important...)that sb should do这种句型的虚拟后面should do的形式可以换成过去式的形式吗?比如it is necessary that we arrived there earlier
比如it is high time的虚拟这两种就都可以

it is necessary(important...)that sb should do这种句型的虚拟后面should do的形式可以换成过去式的形式吗?比如it is necessary that we arrived there earlier比如it is high time的虚拟这两种就都可以
听说过的貌似是sb should do 多

不能啦,只能用(should) do,这属于特殊用法~