use it to do so.
@item
-If the header uses @code{INLINE}, either directly or though
+If the header uses @code{INLINE}, either directly or through
@code{DECLARE_LRECORD}, then it must be added to @file{inline.c}'s
includes.
As a general rule, all typedefs should go into the typedefs section of
@file{lisp.h} rather than into a module-specific header file even if the
structure is defined elsewhere. This allows function prototypes that
-use the typedef to placed into other header files. Forward structure
+use the typedef to be placed into other header files. Forward structure
declarations (i.e. a simple declaration like @code{struct foo;} where
the structure itself is defined elsewhere) should be placed into the
typedefs section as necessary.