diff --git a/src/backend/jit/llvm/llvmjit_deform.c b/src/backend/jit/llvm/llvmjit_deform.c
index 59e38d2..ab0c6d0 100644
--- a/src/backend/jit/llvm/llvmjit_deform.c
+++ b/src/backend/jit/llvm/llvmjit_deform.c
@@ -93,7 +93,7 @@ slot_compile_deform(LLVMJitContext *context, TupleDesc desc, int natts)
 	funcname = llvm_expand_funcname(context, "deform");
 
 	/*
-	 * Check which columns do have to exist, so we don't have to check the
+	 * Check which columns have to exist, so we don't have to check the
 	 * rows natts unnecessarily.
 	 */
 	for (attnum = 0; attnum < desc->natts; attnum++)
@@ -252,7 +252,7 @@ slot_compile_deform(LLVMJitContext *context, TupleDesc desc, int natts)
 	}
 
 	/*
-	 * Check if's guaranteed the all the desired attributes are available in
+	 * Check if it's guaranteed that all the desired attributes are available in
 	 * tuple. If so, we can start deforming. If not, need to make sure to
 	 * fetch the missing columns.
 	 */
@@ -337,7 +337,7 @@ slot_compile_deform(LLVMJitContext *context, TupleDesc desc, int natts)
 
 		/*
 		 * If this is the first attribute, slot->tts_nvalid was 0. Therefore
-		 * reset offset to 0 to, it be from a previous execution.
+		 * also reset offset to 0, it may be from a previous execution.
 		 */
 		if (attnum == 0)
 		{
@@ -554,7 +554,7 @@ slot_compile_deform(LLVMJitContext *context, TupleDesc desc, int natts)
 		else if (att->attnotnull && attguaranteedalign && known_alignment >= 0)
 		{
 			/*
-			 * If the offset to the column was previously known a NOT NULL &
+			 * If the offset to the column was previously known, a NOT NULL &
 			 * fixed width column guarantees that alignment is just the
 			 * previous alignment plus column width.
 			 */