Hello everybody. I am not sure about the following. In a paper that I am working on I used this sentence: "This kind of results does not demonstrate..." However, I was corrected by a friend (native speaker) who suggested: "These kind of results do not demonstrate..." It is not that I mistrust my friend. I just found the original sentence grammatically more coherent -> Since "kind" is singular, then should not it be "this" (instead of "these") + singular verb form? Thanx for your comments on this issue.