diff --git a/rmarkdown.Rmd b/rmarkdown.Rmd
index 2777da9..880198a 100644
--- a/rmarkdown.Rmd
+++ b/rmarkdown.Rmd
@@ -336,7 +336,7 @@ You can control many other "whole document" settings by tweaking the parameters
 
 R Markdown documents can include one or more parameters whose values can be set when you render the report. Parameters are useful when you want to re-render the same report with distinct values for various key inputs. For example, you might be producing sales reports per branch, exam results by student, or demographic summaries by country. To declare one or more parameters, use the `params` field. 
 
-This example use a `my_class` parameter to determines which class of cars to display:
+This example uses a `my_class` parameter to determine which class of cars to display:
 
 ```{r, echo = FALSE, out.width = "100%", comment = ""}
 cat(readr::read_file("rmarkdown/fuel-economy.Rmd"))