dictionary. It may not be used to delete all variables from the
dictionary; use @cmd{NEW FILE} to do that (@pxref{NEW FILE}).
-@cmd{DELETE VARIABLES} should not used after defining transformations
-and before executing a procedure. If it is used in such a context, it
+@cmd{DELETE VARIABLES} should not be used after defining transformations
+but before executing a procedure. If it is used in such a context, it
causes the data to be read. If it is used while @cmd{TEMPORARY} is in
effect, it causes the temporary transformations to become permanent.