What is the difference between by and for?


These products were made by American manufacturers for consumers in Japan.&nbsp;&nbsp;Hope this example can help you understand to some extent. Please do not hesitate to inform us what sentences confused you most in terms of by or for.&nbsp;&nbsp;&nbsp;

Those are the prepositions.Used like---something is done by someone and something&nbsp;is done for someone.Basically "by" is used in passive voice sentences and also some sentences like---what is the time by your watch? etc.&nbsp;