diff --git a/man2/getgroups.2 b/man2/getgroups.2
index 3fd99208d..9851c8707 100644
--- a/man2/getgroups.2
+++ b/man2/getgroups.2
@@ -92,7 +92,7 @@ in the buffer pointed to by
 .SH "RETURN VALUE"
 On success,
 .BR getgroups ()
-returns the number of supplementary group IDs is returned.
+returns the number of supplementary group IDs.
 On error, \-1 is returned, and
 .I errno
 is set appropriately.
diff --git a/man2/mbind.2 b/man2/mbind.2
index d9b7290fe..6d53499d7 100644
--- a/man2/mbind.2
+++ b/man2/mbind.2
@@ -131,7 +131,7 @@ are:
 A non-empty
 .I nodemask
 specifies physical node ids.
-Linux does will not remap the
+Linux does not remap the
 .I nodemask
 when the process moves to a different cpuset context,
 nor when the set of nodes allowed by the process's
diff --git a/man2/utimensat.2 b/man2/utimensat.2
index 1b340bb41..3148cb875 100644
--- a/man2/utimensat.2
+++ b/man2/utimensat.2
@@ -226,7 +226,7 @@ and:
 .PD 0
 .RS
 .IP * 2
-the effective effective ID of the caller does not match
+the effective user ID of the caller does not match
 the owner of the file,
 the caller does not have write access to the file,
 and the caller is not privileged
@@ -574,7 +574,7 @@ pointing to a structure in which both
 .I tv_nsec
 fields are
 .BR UTIME_NOW ,
-in order to update the both timestamps to the current time.
+in order to update both timestamps to the current time.
 However,
 .BR futimens ()
 instead checks whether the
diff --git a/man3/atan2.3 b/man3/atan2.3
index ced82d5fa..72dbc3074 100644
--- a/man3/atan2.3
+++ b/man3/atan2.3
@@ -161,8 +161,6 @@ C99, POSIX.1-2001.
 The variant returning
 .I double
 also conforms to
-.I double
-variant also conforms to
 SVr4, 4.3BSD, C89.
 .SH "SEE ALSO"
 .BR acos (3),
diff --git a/man3/clock_getcpuclockid.3 b/man3/clock_getcpuclockid.3
index 8c5666b9d..8d8cb3854 100644
--- a/man3/clock_getcpuclockid.3
+++ b/man3/clock_getcpuclockid.3
@@ -43,7 +43,7 @@ _XOPEN_SOURCE\ >=\ 600
 .SH DESCRIPTION
 The
 .BR clock_getcpuclockid ()
-obtains the ID of the CPU-time clock of the process whose ID is
+function obtains the ID of the CPU-time clock of the process whose ID is
 .IR pid ,
 and returns it in the location pointed to by
 .IR clock_id .
diff --git a/man3/pow.3 b/man3/pow.3
index 8e3bd879f..12e794755 100644
--- a/man3/pow.3
+++ b/man3/pow.3
@@ -346,7 +346,7 @@ In version 2.3.2 and earlier,
 .\" to confirm if this error occurs only in 2.3.2.
 when an overflow or underflow error occurs, glibc's
 .BR pow ()
-generates a bogus invalid floating-point
+generates a bogus invalid floating-point exception
 .RB ( FE_INVALID )
 in addition to the overflow or underflow exception.
 .SH "SEE ALSO"