before until after as soon as 的主句和从句要用什么时态?

before until after as soon as 的主句和从句要用什么时态?

你想问的这几个词应该是在做时间状语从句连词的时态问题
它们有一个共同点：叙述将来事情时,都有时态变化———1、主句用将来时,不变
2、从句用一般现在时,变戏法
再问： 嗯，就是这几个词应该是在做时间状语从句连词的时态问题，请回答完整点，分别用什么时态，我会采纳的
再答： 意思就是说，这几个连词后的从句表达将来的事情时，就用一般现在时态, 当然，过去将来就用一般过去时态 例如： She will come before the meeting begins. They will wait until you return tomorrow. The girl is going to visit you after you come back home from abroad. I will answer your questions as soon as I you ask me for help.