Update peps/pep-0749.rst

Co-authored-by: Carl Meyer <[email protected]>

peps/pep-0749.rst

@@ -29,7 +29,7 @@ specification:
 * There will not be a code flag for marking ``__annotate__`` functions
   that can be run in a "fake globals" environment. Instead, we add a fourth format,
   ``FAKE_GLOBALS_VALUE``, to allow third-party implementors of annotate functions to
-  indicate what formats the support.
+  indicate what formats they support.
 * Setting the ``__annotations__`` attribute directly will not affect the ``__annotate__`` attribute.
 * We add functionality to allow evaluating type alias values and type parameter bounds and defaults
   (which were added by :pep:`695` and :pep:`696`) using PEP 649-like semantics.