can you start a sentence with but
lady said:can you start a sentence with but
Guide to Writing and Grammar said:]A sentence beginning with And or But will tend to draw attention to itself and its transitional function.
Writers should examine such sentences with two questions in mind:
(1) Would the sentence function just as well without the initial conjunction?
(2) Should the sentence in question be connected to the previous sentence?
If And or But seems appropriate, use it.