WordReference Collins English Usage © 2020
as soon as
As soon as is a conjunction. You use as soon as to say that something will happen immediately after something else has happened.
As soon as we get the tickets we'll send them to you.
Be careful
You usually use the present simple after as soon as. Don't use a future form. Don't say, for example, ‘I will call you as soon as I will get home’. You say ‘I will call you as soon as I get home’.
Ask him to come in, will you, as soon as he arrives.
When you are talking about the past, you use the past simple or the past perfect after as soon as.
As soon as she got out of bed the telephone stopped ringing.
As soon as she had gone, he started eating the cake.
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