When researching your keywords and topics that you are looking to create your online content with, that you will insert your target keywords and phrases into, it often comes up with the clients, should I use the singular or the plural of these keywords?
At this point the answer is very easy - Use both in carefully crafted and unique content. Dont assume that Google is smart enough to know what you where thinking and hoping to achieve when you created the content!
Let me give you the example, when I was recently looking to grow my business more in the Preston seo market, I had created and published my initial articles on the site and linked them to the content that I was using in this initial exploratory campaign. After a few weeks, it was evident that I was on the front page for "Seo consultants in Preston" with consultants in the plural, but could not be found anywhere for "Seo consultant Preston", Please view the pages below to see the results of what I mean. So when creating the online content after your research, it is important to check on the results to ensure that the results are what you expected or hoped for and if not that changes and updates can be made. This keyword / results checking process is very time consuming.