"before we can answer" is a correct and usable phrase in written English.
You can use it to refer to a future action that needs to take place before a response can be issued. For example, "Let us consider the implications of this decision before we can answer your question."
"It will take a while before we can answer those questions".
Before we can answer these questions, we need to know the actual yield levels for corn grown for grain and also for corn grown and harvested for silage.
"It's going to be 10 years before we can answer the 'so what should I do' question for people," said Eva Oberdörster, an aquatic toxicologist at Southern Methodist University in Dallas.
Pratima Rangarajan: I think you know, maybe we should talk a little bit about what the world looks like in 20 years, before we can answer the question, after all whether they're an oil and gas company or an energy company they're merely a supplier to what we want.
But before we can answer why companies trended smaller, we should answer a more basic question: why do companies exist at all?
Before we can answer this important question, though, we need to define who postdoctoral appointees are, how we count them, and how we can best prepare them for the next step in their professional careers.
We hope we can answer all your questions before our Stash green tea high wears off.
But you have to give us some time to go off and work that before we can really answer that question". The places Nasa will not go looking for the needed funds are its international partners on the project, Europe and Canada.
"It may take years before we can start answering questions about the ecological impacts of the disease on coast redwood and Douglas fir," said Rizzo.
Before we can attempt to answer that question, it is important to explore the halftime show's history and evolution (and its humble beginnings).
But before we can find answers, we must first ask the right questions.
