Consider the following premises. Patricia is an office clerk. Patricia is not a carpenter. For all z, if z were a carpenter, then z is taking a plane. For all z, if z takes a plane, then z is a carpenter. Can we infer the following from them? If we can, name the inference rule being used: If Patricia were an office clerk, then Patricia is not taking a plane.
We cannot infer that from the premises. Therefore the answer is no.