diff --git a/introduction.tex b/introduction.tex
index fa7a3f0..b0b9d30 100644
--- a/introduction.tex
+++ b/introduction.tex
@@ -1,7 +1,7 @@
 \section{Introduction}
 \label{sec-introduction}
 
-Two trends are combining to create increasingly crowded and uncoordinated
+Two trends are combined to create increasingly crowded and uncoordinated
 home \wifi{} environments. First, increasing broadband penetration is
 creating larger numbers of private home access points (APs). Strategy
 Analytics estimated that by the end of 2014, 451~M households worldwide