Fix 'can not' in test data and in code comments

Zend/tests/bug47516.phpt

@@ -1,5 +1,5 @@
 --TEST--
-Bug #47516 (nowdoc can not be embed in heredoc but can be embed in double quote)
+Bug #47516 (nowdoc cannot be embedded in heredoc but can be embedded in double quote)
 --FILE--
 <?php
 $s='substr';

Zend/tests/bug70805.phpt

@@ -37,9 +37,9 @@ $t[] = &$t;
 unset($t); // This is used to trigger C::__destruct while doing gc_colloct_roots
 
 $e = $a;
-unset($a); // This one can not be putted into roots buf because it's full, thus gc_colloct_roots will be called,
+unset($a); // This one cannot be put into roots buf because it's full, thus gc_colloct_roots will be called,
            // but C::__destructor which is called in gc_colloct_roots will put $a into buf
-           // which will make $a be putted into gc roots buf twice
+           // which will make $a be put into gc roots buf twice
 var_dump(gc_collect_cycles());
 ?>
 --EXPECT--

ext/pcntl/tests/pcntl_fork_variation.phpt

@@ -1,5 +1,5 @@
 --TEST--
-Test function pcntl_fork() by testing the process isolation in the forking hierarchy father -> son -> grandson where father can not knows his grandson
+Test function pcntl_fork() by testing the process isolation in the forking hierarchy father -> son -> grandson where father cannot know his grandson
 --CREDITS--
 Marco Fabbri mrfabbri@gmail.com
 Francesco Fullone ff@ideato.it

ext/sockets/tests/mcast_ipv6_send.phpt

@@ -13,6 +13,7 @@ $s = socket_create(AF_INET6, SOCK_DGRAM, SOL_UDP) or die("skip Can not create so
 if (socket_set_option($s, $level, IPV6_MULTICAST_IF, 1) === false) {
     die("skip interface 1 either doesn't exist or has no ipv6 address");
 }
+?>
 --FILE--
 <?php
 $domain = AF_INET6;

tests/classes/interface_constant_inheritance_006.phpt

@@ -1,5 +1,5 @@
 --TEST--
-Ensure a interface can not have protected constants
+Ensure an interface cannot have protected constants
 --FILE--
 <?php
 interface A {

tests/classes/interface_constant_inheritance_007.phpt

@@ -1,5 +1,5 @@
 --TEST--
-Ensure a interface can not have private constants
+Ensure an interface cannot have private constants
 --FILE--
 <?php
 interface A {