diff --git a/Documentation/components/syscall.rst b/Documentation/components/syscall.rst
index 07a1310afa5..9a175f1c78d 100644
--- a/Documentation/components/syscall.rst
+++ b/Documentation/components/syscall.rst
@@ -202,8 +202,8 @@ mksyscall
 ---------
 
 mksyscall is C program that is used used during the initial NuttX build
-by the logic in the top-level ``syscall/``! directory. Information about the
+by the logic in the top-level ``syscall/`` directory. Information about the
 stubs and proxies is maintained in a comma separated value (CSV) file
-in the ``syscall/`` directory.  The mksyscall program will accept this CVS
+in the ``syscall/`` directory.  The mksyscall program will accept this CSV
 file as input and generate all of the required proxy or stub files as
 output.  See ``Documentation/components/tools/`` for additional information.
diff --git a/arch/arm/src/common/arm_initialize.c b/arch/arm/src/common/arm_initialize.c
index 65a09495e5d..c86621280b8 100644
--- a/arch/arm/src/common/arm_initialize.c
+++ b/arch/arm/src/common/arm_initialize.c
@@ -33,7 +33,7 @@
  ****************************************************************************/
 
 /* g_current_regs[] holds a references to the current interrupt level
- * register storage structure.  If is non-NULL only during interrupt
+ * register storage structure.  It is non-NULL only during interrupt
  * processing.  Access to g_current_regs[] must be through the macro
  * CURRENT_REGS for portability.
  */
diff --git a/arch/arm64/src/common/arm64_initialize.c b/arch/arm64/src/common/arm64_initialize.c
index 3cb4aaa3251..83d30c566d8 100644
--- a/arch/arm64/src/common/arm64_initialize.c
+++ b/arch/arm64/src/common/arm64_initialize.c
@@ -51,7 +51,7 @@
  ****************************************************************************/
 
 /* g_current_regs[] holds a references to the current interrupt level
- * register storage structure.  If is non-NULL only during interrupt
+ * register storage structure.  It is non-NULL only during interrupt
  * processing.  Access to g_current_regs[] must be through the macro
  * CURRENT_REGS for portability.
  */
diff --git a/arch/ceva/src/common/ceva_doirq.c b/arch/ceva/src/common/ceva_doirq.c
index 0763410e94a..7a24a146714 100644
--- a/arch/ceva/src/common/ceva_doirq.c
+++ b/arch/ceva/src/common/ceva_doirq.c
@@ -34,7 +34,7 @@
  ****************************************************************************/
 
 /* g_current_regs[] holds a references to the current interrupt level
- * register storage structure.  If is non-NULL only during interrupt
+ * register storage structure.  It is non-NULL only during interrupt
  * processing.  Access to g_current_regs[] must be through the macro
  * CURRENT_REGS for portability.
  */
diff --git a/arch/renesas/src/common/renesas_initialize.c b/arch/renesas/src/common/renesas_initialize.c
index de395e4e4b1..6f531076e94 100644
--- a/arch/renesas/src/common/renesas_initialize.c
+++ b/arch/renesas/src/common/renesas_initialize.c
@@ -33,7 +33,7 @@
  ****************************************************************************/
 
 /* This holds a references to the current interrupt level register storage
- * structure.  If is non-NULL only during interrupt processing.
+ * structure.  It is non-NULL only during interrupt processing.
  */
 
 /* Actually a pointer to the beginning of a uint8_t array */
diff --git a/arch/z16/src/common/z16_initialize.c b/arch/z16/src/common/z16_initialize.c
index ad206c13ec7..0ab242f6022 100644
--- a/arch/z16/src/common/z16_initialize.c
+++ b/arch/z16/src/common/z16_initialize.c
@@ -33,7 +33,7 @@
  ****************************************************************************/
 
 /* This holds a references to the current interrupt level
- * register storage structure.  If is non-NULL only during
+ * register storage structure.  It is non-NULL only during
  * interrupt processing.
  */
 
diff --git a/arch/z80/src/common/z80_initialize.c b/arch/z80/src/common/z80_initialize.c
index 235974fc17f..7415cc12cd2 100644
--- a/arch/z80/src/common/z80_initialize.c
+++ b/arch/z80/src/common/z80_initialize.c
@@ -34,7 +34,7 @@
  ****************************************************************************/
 
 /* This holds a references to the current interrupt level register storage
- * structure.  If is non-NULL only during interrupt processing.
+ * structure.  It is non-NULL only during interrupt processing.
  */
 
 volatile FAR chipreg_t *g_current_regs;