"How long before/until the medicine takes effects?" means "how much time elapses until the medicine takes effects (after it is taken)?",
and
"how long after/since you opened your shop?" means "how much time elapsed since you opened your shop?",
is that all right?
So, if I have to go somewhere some time before/after I do something, can I ask "how long before/after I do something do I have to go?", if I ask like this, I confuse it with the sentences above, can it be asked like this?
Or, should I ask
"how much time before/after I do something do I have to go?" or, "when, before/after I do something, do I have to go?"?
Thank you.
Top answer
" can be asked in the same meaning as well, I think. Thank you.
— Anonymous
" can be asked in the same meaning as well, I think.
Thank you.
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That all is right, I think, and I think that it can be asked like "how long before/after I do something do I have to go?" as the meaning can be understood (no confusion), and also "how much time before/after I do something do I have to go?" and "when, before/after I do something, do I have to go (when do I have to go before/after I do something)?" can be asked in the same meaning as well, I think.