But we can not say in advance how much benefit genomes at birth would provide, nor can we predict how much anxiety they would create in children or their parents. (slate.com)
It is impossible to say in advance which option would turn out to be the best answer. (canadiancapitalist.com)
It's hard to say in advance whether you'll be taking your baby on the bus, or whether you will really use the car seat system. (parentingsquad.com)