as soon as的时态有哪些

as soon as指未发生的动作，主句用一般将来时，从句用一般现在时替代一般将来时。指随后发生的2个短动作，主从关系句都用一般过去时。

as soon as用法

指未发生的动作，规律性是主句一般将来时，从句用一般现在时替代一般将来时

如I will tell him the news as soon as he comes back.

如I will go with you as soon as I have washed my face.

指随后发生的2个短动作，主从关系句都用一般过去时

如He took out his English books as soon as he sat down.

但是，因为我见过从句和主句都用一般现在时的状况。