as和soon后面的时态怎么用

As soon as is usually followed by the simple present tense and the simple past tense.

Because the meaning of this phrase is "as soon as possible", guiding the adverbial clause of time. In the adverbial clause of time, the main clause uses the simple future tense and the clause uses the simple present tense. If as soon as indicates a past state, the simple past tense should be used later. Regarding the unperformed actions, the rule is: the main clause uses the simple future tense and the clause uses the simple present tense instead of the simple future tense.