diff --git a/tools/regression/bin/sh/errors/bad-parm-exp1.0 b/tools/regression/bin/sh/errors/bad-parm-exp1.0
new file mode 100644
index 00000000000..6e949945f9f
--- /dev/null
+++ b/tools/regression/bin/sh/errors/bad-parm-exp1.0
@@ -0,0 +1,7 @@
+# $FreeBSD$
+false && {
+	${}
+	${foo/}
+	${foo@bar}
+}
+:
diff --git a/tools/regression/bin/sh/errors/bad-parm-exp2.2 b/tools/regression/bin/sh/errors/bad-parm-exp2.2
new file mode 100644
index 00000000000..7e13d2b895d
--- /dev/null
+++ b/tools/regression/bin/sh/errors/bad-parm-exp2.2
@@ -0,0 +1,2 @@
+# $FreeBSD$
+${}
diff --git a/tools/regression/bin/sh/errors/bad-parm-exp2.2.stderr b/tools/regression/bin/sh/errors/bad-parm-exp2.2.stderr
new file mode 100644
index 00000000000..d027a5ad4ef
--- /dev/null
+++ b/tools/regression/bin/sh/errors/bad-parm-exp2.2.stderr
@@ -0,0 +1 @@
+./errors/bad-parm-exp2.2: ${}: Bad substitution
diff --git a/tools/regression/bin/sh/errors/bad-parm-exp3.2 b/tools/regression/bin/sh/errors/bad-parm-exp3.2
new file mode 100644
index 00000000000..a5ecba5a7e5
--- /dev/null
+++ b/tools/regression/bin/sh/errors/bad-parm-exp3.2
@@ -0,0 +1,2 @@
+# $FreeBSD$
+${foo/}
diff --git a/tools/regression/bin/sh/errors/bad-parm-exp3.2.stderr b/tools/regression/bin/sh/errors/bad-parm-exp3.2.stderr
new file mode 100644
index 00000000000..ef40251f23f
--- /dev/null
+++ b/tools/regression/bin/sh/errors/bad-parm-exp3.2.stderr
@@ -0,0 +1 @@
+./errors/bad-parm-exp3.2: ${foo/}: Bad substitution
diff --git a/tools/regression/bin/sh/errors/bad-parm-exp4.2 b/tools/regression/bin/sh/errors/bad-parm-exp4.2
new file mode 100644
index 00000000000..9eec8d08470
--- /dev/null
+++ b/tools/regression/bin/sh/errors/bad-parm-exp4.2
@@ -0,0 +1,2 @@
+# $FreeBSD$
+${foo:@abc}
diff --git a/tools/regression/bin/sh/errors/bad-parm-exp4.2.stderr b/tools/regression/bin/sh/errors/bad-parm-exp4.2.stderr
new file mode 100644
index 00000000000..89bd80f0e8e
--- /dev/null
+++ b/tools/regression/bin/sh/errors/bad-parm-exp4.2.stderr
@@ -0,0 +1 @@
+./errors/bad-parm-exp4.2: ${foo:@...}: Bad substitution
diff --git a/tools/regression/bin/sh/errors/bad-parm-exp5.2 b/tools/regression/bin/sh/errors/bad-parm-exp5.2
new file mode 100644
index 00000000000..459281f04c3
--- /dev/null
+++ b/tools/regression/bin/sh/errors/bad-parm-exp5.2
@@ -0,0 +1,2 @@
+# $FreeBSD$
+${/}
diff --git a/tools/regression/bin/sh/errors/bad-parm-exp5.2.stderr b/tools/regression/bin/sh/errors/bad-parm-exp5.2.stderr
new file mode 100644
index 00000000000..89b19978f9d
--- /dev/null
+++ b/tools/regression/bin/sh/errors/bad-parm-exp5.2.stderr
@@ -0,0 +1 @@
+./errors/bad-parm-exp5.2: ${/}: Bad substitution