be a perfectly natural part of the structure of modern English(There's no necessity to ban prepositions from the end of sentences. Ending a sentence with a preposition is a perfectly natural part of the structure of modern English. Note that it is permissible to end a sentence with a preposition, despite a durable superstition that it is an error. He told me where to stand at is an error, but not because the preposition at is at the end; at shouldn't be in that sentence at all. Alex_Odeychuk)
