I have read this thread but it couldn't answer my question.
https://www.EnglishForward.com/English/UsingWillInWhenClauses/zgdlk/post.htm
The sentence:
When you are in front of the house dial the number 0 on the door phone and press the green button to ring.
Would "when you will be" be correct?
Askew Would "when you will be" be correct? No. When when begins a temporal subordinate clause, the future tense cannot be used except perhaps in some rare cases when will indicates desire or willingness, which meaning is a remnant from the days of Old English.
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AskewWould "when you will be" be correct?
No. When when begins a temporal subordinate clause, the future tense cannot be used except perhaps in some rare cases when will indicates desire or willingness, which meaning is a remnant from the days of Old English. Also, there should be a comma after house in your sentence.