contractions are a little less formal

Author: karenetheridge

jsonschema-core.xml

@@ -1632,7 +1632,7 @@
                     </t>
                     <t>
                         When schemas are downloaded,
-                        for example by a generic user-agent that doesn't know until runtime which schemas to download,
+                        for example by a generic user-agent that does not know until runtime which schemas to download,
                         see <xref target="hypermedia">Usage for Hypermedia</xref>.
                     </t>
                     <t>
@@ -3083,7 +3083,7 @@ https://example.com/schemas/common#/$defs/count/minimum
             <t>
                 Instances and schemas are both frequently written by untrusted third parties, to be
                 deployed on public Internet servers.
-                Validators should take care that the parsing and validating against schemas doesn't consume excessive
+                Validators should take care that the parsing and validating against schemas does not consume excessive
                 system resources.
                 Validators MUST NOT fall into an infinite loop.
             </t>
@@ -3093,7 +3093,7 @@ https://example.com/schemas/common#/$defs/count/minimum
                 excessive consumption of system resources in such a scenario.
             </t>
             <t>
-                Servers MUST ensure that malicious parties can't change the functionality of
+                Servers MUST ensure that malicious parties cannot change the functionality of
                 existing schemas by uploading a schema with a pre-existing or very similar "$id".
             </t>
             <t>