diff --git a/man2/ioctl_tty.2 b/man2/ioctl_tty.2
index a845bba3b..a4c21c833 100644
--- a/man2/ioctl_tty.2
+++ b/man2/ioctl_tty.2
@@ -335,14 +335,15 @@ If the first byte is not
 (0), it is an OR of one
 or more of the following bits:
 .IP
-.nf
-TIOCPKT_FLUSHREAD   The read queue for the terminal is flushed.
-TIOCPKT_FLUSHWRITE  The write queue for the terminal is flushed.
-TIOCPKT_STOP        Output to the terminal is stopped.
-TIOCPKT_START       Output to the terminal is restarted.
-TIOCPKT_DOSTOP      The start and stop characters are \fB\(haS\fP/\fB\(haQ\fP.
-TIOCPKT_NOSTOP      The start and stop characters are not \fB\(haS\fP/\fB\(haQ\fP.
-.fi
+.TS
+lb l.
+TIOCPKT_FLUSHREAD	The read queue for the terminal is flushed.
+TIOCPKT_FLUSHWRITE	The write queue for the terminal is flushed.
+TIOCPKT_STOP	Output to the terminal is stopped.
+TIOCPKT_START	Output to the terminal is restarted.
+TIOCPKT_DOSTOP	The start and stop characters are \fB\(haS\fP/\fB\(haQ\fP.
+TIOCPKT_NOSTOP	The start and stop characters are not \fB\(haS\fP/\fB\(haQ\fP.
+.TE
 .IP
 While packet mode is in use, the presence
 of control status information to be read
@@ -429,19 +430,20 @@ Set the indicated modem bits.
 .PP
 The following bits are used by the above ioctls:
 .PP
-.nf
-TIOCM_LE        DSR (data set ready/line enable)
-TIOCM_DTR       DTR (data terminal ready)
-TIOCM_RTS       RTS (request to send)
-TIOCM_ST        Secondary TXD (transmit)
-TIOCM_SR        Secondary RXD (receive)
-TIOCM_CTS       CTS (clear to send)
-TIOCM_CAR       DCD (data carrier detect)
-TIOCM_CD         see TIOCM_CAR
-TIOCM_RNG       RNG (ring)
-TIOCM_RI         see TIOCM_RNG
-TIOCM_DSR       DSR (data set ready)
-.fi
+.TS
+lb l.
+TIOCM_LE	DSR (data set ready/line enable)
+TIOCM_DTR	DTR (data terminal ready)
+TIOCM_RTS	RTS (request to send)
+TIOCM_ST	Secondary TXD (transmit)
+TIOCM_SR	Secondary RXD (receive)
+TIOCM_CTS	CTS (clear to send)
+TIOCM_CAR	DCD (data carrier detect)
+TIOCM_CD	see TIOCM_CAR
+TIOCM_RNG	RNG (ring)
+TIOCM_RI	see TIOCM_RNG
+TIOCM_DSR	DSR (data set ready)
+.TE
 .TP
 .BI "TIOCMIWAIT	int " arg
 Wait for any of the 4 modem bits (DCD, RI, DSR, CTS) to change.
diff --git a/man3/matherr.3 b/man3/matherr.3
index d9778aaef..d955d6b24 100644
--- a/man3/matherr.3
+++ b/man3/matherr.3
@@ -197,7 +197,8 @@ then the system prints an error message on standard error.
 The table uses the following notations and abbreviations:
 .PP
 .RS
-.nf
+.TS
+l l.
 x        first argument to function
 y        second argument to function
 fin      finite value for argument
@@ -207,7 +208,7 @@ o/f      result overflowed
 u/f      result underflowed
 |x|      absolute value of x
 X_TLOSS  is a constant defined in \fI<math.h>\fP
-.fi
+.TE
 .RE
 .\" Details below from glibc 2.8's sysdeps/ieee754/k_standard.c
 .\" A subset of cases were test by experimental programs.
diff --git a/man4/cciss.4 b/man4/cciss.4
index 6db148b88..25cad60db 100644
--- a/man4/cciss.4
+++ b/man4/cciss.4
@@ -97,7 +97,6 @@ run from the Smart Array's option ROM at boot time.
 .SS Device nodes
 The device naming scheme is as follows:
 .PP
-.nf
 Major numbers:
 .PP
     104     cciss0
@@ -121,17 +120,18 @@ Minor numbers:
 .EE
 .PP
 The device naming scheme is:
-.PP
-    /dev/cciss/c0d0         Controller 0, disk 0, whole device
-    /dev/cciss/c0d0p1       Controller 0, disk 0, partition 1
-    /dev/cciss/c0d0p2       Controller 0, disk 0, partition 2
-    /dev/cciss/c0d0p3       Controller 0, disk 0, partition 3
-.PP
-    /dev/cciss/c1d1         Controller 1, disk 1, whole device
-    /dev/cciss/c1d1p1       Controller 1, disk 1, partition 1
-    /dev/cciss/c1d1p2       Controller 1, disk 1, partition 2
-    /dev/cciss/c1d1p3       Controller 1, disk 1, partition 3
-.fi
+.TS
+li l.
+/dev/cciss/c0d0	Controller 0, disk 0, whole device
+/dev/cciss/c0d0p1	Controller 0, disk 0, partition 1
+/dev/cciss/c0d0p2	Controller 0, disk 0, partition 2
+/dev/cciss/c0d0p3	Controller 0, disk 0, partition 3
+
+/dev/cciss/c1d1	Controller 1, disk 1, whole device
+/dev/cciss/c1d1p1	Controller 1, disk 1, partition 1
+/dev/cciss/c1d1p2	Controller 1, disk 1, partition 2
+/dev/cciss/c1d1p3	Controller 1, disk 1, partition 3
+.TE
 .SS Files in /proc
 The files
 .I /proc/driver/cciss/cciss[0\-9]+
diff --git a/man4/sk98lin.4 b/man4/sk98lin.4
index 95c1b102f..1301300b2 100644
--- a/man4/sk98lin.4
+++ b/man4/sk98lin.4
@@ -398,15 +398,16 @@ The different values of this variable reflect the
 most meaningful combinations of port parameters.
 Possible values and their corresponding combination of per-port parameters:
 .IP
-.nf
-ConType | DupCap   AutoNeg   FlowCtrl   Role   Speed
---------+-------------------------------------------
-\fIAuto\fP    |  Both      On      SymOrRem   Auto   Auto
-\fI100FD\fP   |  Full      Off       None     Auto   100
-\fI100HD\fP   |  Half      Off       None     Auto   100
-\fI10FD\fP    |  Full      Off       None     Auto   10
-\fI10HD\fP    |  Half      Off       None     Auto   10
-.fi
+.TS
+lb lb lb lb lb lb
+l l l l l l.
+ConType	DupCap	AutoNeg	FlowCtrl	Role	Speed
+\fIAuto\fP	Both	On	SymOrRem	Auto	Auto
+\fI100FD\fP	Full	Off	None	Auto	100
+\fI100HD\fP	Half	Off	None	Auto	100
+\fI10FD\fP	Full	Off	None	Auto	10
+\fI10HD\fP	Half	Off	None	Auto	10
+.TE
 .IP
 Stating any other port parameter together with this
 .I ConType