PATENTS: fix a typo: constitutes -> constitute
diff --git a/PATENTS b/PATENTS
index 79d17d7..caedf60 100644
--- a/PATENTS
+++ b/PATENTS
@@ -17,7 +17,7 @@
enforcement activity against any entity (including a cross-claim or
counterclaim in a lawsuit) alleging that any of these implementations of WebM
or any code incorporated within any of these implementations of WebM
-constitutes direct or contributory patent infringement, or inducement of
+constitute direct or contributory patent infringement, or inducement of
patent infringement, then any patent rights granted to you under this License
for these implementations of WebM shall terminate as of the date such
litigation is filed.
