as soon as 的用法。还有后面应该接啥语态。是不是和前面的保持一致

as
soon
as
的用法一般是两种情况：
1、指未发生的动作，规律是：主句一般将来时，从句用一般现在时代替一般将来时
如：I
will
tell
him
the
news
as
soon
as
he
comes
back。
注：有时，为了特意表达刚刚完成某事就如何如何，需要用现在完成时。
如：I
will
go
with
you
as
soon
as
I
have
washed
my
face.
2、指紧接着发生的两个短动作，主从句都用一般过去时
如
He
took
out
his
English
books
as
soon
as
he
sat
down
不过，我也见过从句和主句都用一般现在时的情况。
如：As
soon
as
he
finishes
his
classwork,
he
runs
out
of
the
class.
他一做完课堂作业，就跑出了教室。
总之，记住那两种基本的情况，不把时态用得太混乱了就行了（比如后面从句里用了将来时，就绝对允许了）。
希望我们团队的回答能帮到你，望采纳，谢谢！