diff --git a/about_control_flow.go b/about_control_flow.go
index 08564be..9b3438b 100644
--- a/about_control_flow.go
+++ b/about_control_flow.go
@@ -47,6 +47,25 @@ func testControlFlow() {
     case true:
       str = "second"
     }
-    assert(str == "second") // in the absence of value, truth is assumed
+    assert(str == "second") // in the absence of value, there is truth
+  }
+
+  {
+    n := 0
+    for i := 0; i < 5; i++ {
+      n += i
+    }
+    assert(n == 10) // for can have the structure with which we are all familiar
+  }
+
+  {
+    n := 1
+    for {
+      n *= 2
+      if n > 20 {
+        break
+      }
+    }
+    assert(n == 32) // though omitting everything creates an infinite loop
   }
 }