diff --git a/Doc/c-api/object.rst b/Doc/c-api/object.rst
index 50b83e9..1f0bd17 100644
--- a/Doc/c-api/object.rst
+++ b/Doc/c-api/object.rst
@@ -157,7 +157,7 @@
 
    .. index:: builtin: bytes
 
-   Compute a bytes representation of object *o*.  In 2.x, this is just a alias
+   Compute a bytes representation of object *o*.  In 2.x, this is just an alias
    for :c:func:`PyObject_Str`.
 
 
diff --git a/Doc/c-api/set.rst b/Doc/c-api/set.rst
index 258530b..f6ebcf3 100644
--- a/Doc/c-api/set.rst
+++ b/Doc/c-api/set.rst
@@ -140,7 +140,7 @@
    Add *key* to a :class:`set` instance.  Does not apply to :class:`frozenset`
    instances.  Return 0 on success or -1 on failure. Raise a :exc:`TypeError` if
    the *key* is unhashable. Raise a :exc:`MemoryError` if there is no room to grow.
-   Raise a :exc:`SystemError` if *set* is an not an instance of :class:`set` or its
+   Raise a :exc:`SystemError` if *set* is not an instance of :class:`set` or its
    subtype.
 
    .. versionchanged:: 2.6
@@ -158,7 +158,7 @@
    error is encountered.  Does not raise :exc:`KeyError` for missing keys.  Raise a
    :exc:`TypeError` if the *key* is unhashable.  Unlike the Python :meth:`~set.discard`
    method, this function does not automatically convert unhashable sets into
-   temporary frozensets. Raise :exc:`PyExc_SystemError` if *set* is an not an
+   temporary frozensets. Raise :exc:`PyExc_SystemError` if *set* is not an
    instance of :class:`set` or its subtype.
 
 
@@ -166,7 +166,7 @@
 
    Return a new reference to an arbitrary object in the *set*, and removes the
    object from the *set*.  Return *NULL* on failure.  Raise :exc:`KeyError` if the
-   set is empty. Raise a :exc:`SystemError` if *set* is an not an instance of
+   set is empty. Raise a :exc:`SystemError` if *set* is not an instance of
    :class:`set` or its subtype.
 
 
diff --git a/Doc/c-api/unicode.rst b/Doc/c-api/unicode.rst
index 3262354..85800c5 100644
--- a/Doc/c-api/unicode.rst
+++ b/Doc/c-api/unicode.rst
@@ -260,7 +260,7 @@
    | :attr:`%%`        | *n/a*               | The literal % character.       |
    +-------------------+---------------------+--------------------------------+
    | :attr:`%c`        | int                 | A single character,            |
-   |                   |                     | represented as an C int.       |
+   |                   |                     | represented as a C int.        |
    +-------------------+---------------------+--------------------------------+
    | :attr:`%d`        | int                 | Exactly equivalent to          |
    |                   |                     | ``printf("%d")``.              |