Good and Bad Writing -- Exercises in Evaluating Writing Samples
Grammar -- Dangling Modifiers
The Purdue University website defines a dangling modifier as:
A word or phrase that modifies a word not clearly stated in the sentence. A modifier describes, clarifies, or gives more detail about a concept.
An example of what not to do:
Changing the horses every ten miles, Washington's carriages seemed to run better.
Changing the horses every ten miles, Washington found the carriages seemed to run better.
To get more sunlight, the building used large windows.
To get more sunlight, the builders put large windows in the building.