diff --git a/src/V3DfgPeephole.cpp b/src/V3DfgPeephole.cpp
index 531d5c35b..da61dc855 100644
--- a/src/V3DfgPeephole.cpp
+++ b/src/V3DfgPeephole.cpp
@@ -152,7 +152,7 @@ class V3DfgPeephole final : public DfgVisitor {
     // METHODS
     bool checkApplying(VDfgPeepholePattern id) {
         if (!m_ctx.m_enabled[id]) return false;
-        UINFO(9, "Applying DFG patten " << id.ascii() << endl);
+        UINFO(9, "Applying DFG pattern " << id.ascii() << endl);
         ++m_ctx.m_count[id];
         return true;
     }
diff --git a/src/V3LinkLValue.cpp b/src/V3LinkLValue.cpp
index 160d0075e..0d55dff70 100644
--- a/src/V3LinkLValue.cpp
+++ b/src/V3LinkLValue.cpp
@@ -53,7 +53,7 @@ class LinkLValueVisitor final : public VNVisitor {
                 // as V3LinkLValue runs after V3Param
                 nodep->v3error("Storing to parameter variable "
                                << nodep->prettyNameQ()
-                               << " in a context that is determed only at runtime");
+                               << " in a context that is determined only at runtime");
             }
             if (m_setContinuously) {
                 nodep->varp()->isContinuously(true);
diff --git a/src/V3Width.cpp b/src/V3Width.cpp
index 59c64c97a..798d4e34e 100644
--- a/src/V3Width.cpp
+++ b/src/V3Width.cpp
@@ -672,7 +672,7 @@ class WidthVisitor final : public VNVisitor {
     void visit(AstDefaultDisable* nodep) override {
         assertAtStatement(nodep);
         // it's like an if() condition.
-        iterateCheckBool(nodep, "default disable iff condiftion", nodep->condp(), BOTH);
+        iterateCheckBool(nodep, "default disable iff condition", nodep->condp(), BOTH);
     }
     void visit(AstDelay* nodep) override {
         if (VN_IS(m_procedurep, Final)) {
diff --git a/test_regress/t/t_param_store_bad.out b/test_regress/t/t_param_store_bad.out
index 7a47a6e14..8db0b471b 100644
--- a/test_regress/t/t_param_store_bad.out
+++ b/test_regress/t/t_param_store_bad.out
@@ -1,4 +1,4 @@
-%Error: t/t_param_store_bad.v:12:31: Storing to parameter variable 'S' in a context that is determed only at runtime
+%Error: t/t_param_store_bad.v:12:31: Storing to parameter variable 'S' in a context that is determined only at runtime
    12 |       $value$plusargs("S=%s", S);   
       |                               ^
 %Error: Exiting due to