Recently I read in a composition book co-compiled by an American, a Briton and a Chinese the following sentence: There are many different methods to keep in good shape, and one must choose those that are most appropriate for their own lifestyle. But when I read this sentence, my first response was that there might be something wrong with the structure of "method to do something". I went to my dictionaries and they tell me that "method" can only be followed by "of or for (doing) something". Then, while I was explaining that composition to my students in the writing session, I changed the sentence to "There are many different methods of keeping in good shape, and one must choose those that are most appropriate for their own lifestyle." But I now still doubt whether what I did about that sentence was really right or not.Can we also say "a method to do something"? Please give me a helping hand.
opinion from a non-teacher
Method means 'way of doing something'.
Thus, 'method to do something' sounds odd.