diff --git a/src/history/store.ts b/src/history/store.ts
index a4d0f2f..620c498 100644
--- a/src/history/store.ts
+++ b/src/history/store.ts
@@ -7,6 +7,43 @@ import { getHistoryPath, getConfigDir } from '../config/store.js';
 
 const CONVENTIONAL_PREFIX_RE = /^(feat|fix|chore|docs|style|refactor|perf|test|build|ci|revert)(\([^)]+\))?:\s*/;
 
+const BASE_FORM_VERBS_WITH_SUFFIXES = new Set([
+  'bleed',
+  'breed',
+  'bring',
+  'cling',
+  'ding',
+  'embed',
+  'exceed',
+  'feed',
+  'fling',
+  'heed',
+  'imbed',
+  'king',
+  'need',
+  'ping',
+  'proceed',
+  'ring',
+  'seed',
+  'shed',
+  'sing',
+  'sling',
+  'speed',
+  'spring',
+  'sting',
+  'string',
+  'swing',
+  'wed',
+  'wing',
+  'wring',
+  'zing',
+]);
+
+function isDescriptiveVerb(verb: string): boolean {
+  verb = verb.toLowerCase();
+  return !BASE_FORM_VERBS_WITH_SUFFIXES.has(verb) && (verb.endsWith('ed') || verb.endsWith('ing'));
+}
+
 const HISTORY_LOCK_RETRY_MS = 25;
 const HISTORY_LOCK_STALE_MS = 60_000;
 const HISTORY_LOCK_TIMEOUT_MS = HISTORY_LOCK_STALE_MS + 10_000;
@@ -309,17 +346,11 @@ export async function buildProfile(historySize: number): Promise<StyleProfile> {
     const verbMatch = firstLine.match(
       /^(?:feat|fix|chore|docs|style|refactor|perf|test|build|ci|revert)(?:\([^)]+\))?:\s*(\w+)/,
     );
-    if (verbMatch) {
-      const verb = verbMatch[1]!;
-      if (!verb.endsWith('ed') && !verb.endsWith('ing')) {
-        imperativeCount++;
-        imperativeSampleCount++;
-      }
-    } else {
-      const firstWord = firstLine.match(/^\w+/);
-      if (firstWord && !firstWord[0]!.endsWith('ed') && !firstWord[0]!.endsWith('ing')) {
+    const verb = verbMatch?.[1] ?? firstLine.match(/^\w+/)?.[0];
+    if (verb) {
+      imperativeSampleCount++;
+      if (!isDescriptiveVerb(verb)) {
         imperativeCount++;
-        imperativeSampleCount++;
       }
     }
 
diff --git a/tests/history-profile.test.mjs b/tests/history-profile.test.mjs
index 41bde7a..b71d094 100644
--- a/tests/history-profile.test.mjs
+++ b/tests/history-profile.test.mjs
@@ -43,7 +43,7 @@ function restoreEnv(name, value) {
   }
 }
 
-test('buildProfile excludes descriptive verb forms from the imperative-rate denominator', async () => {
+test('buildProfile counts descriptive verb forms in the imperative-rate denominator', async () => {
   const originalHome = process.env.HOME;
   const originalAppData = process.env.APPDATA;
   const originalXdgConfigHome = process.env.XDG_CONFIG_HOME;
@@ -58,7 +58,31 @@ test('buildProfile excludes descriptive verb forms from the imperative-rate deno
     const profile = await buildProfile(10);
 
     assert.equal(profile.totalCommits, 3);
-    assert.equal(profile.imperativeRate, 1);
+    assert.equal(profile.imperativeRate, 1 / 3);
+  } finally {
+    restoreEnv('HOME', originalHome);
+    restoreEnv('APPDATA', originalAppData);
+    restoreEnv('XDG_CONFIG_HOME', originalXdgConfigHome);
+    rmSync(tempHome, { recursive: true, force: true });
+  }
+});
+
+test('buildProfile recognizes base-form verbs that end in descriptive suffixes', async () => {
+  const originalHome = process.env.HOME;
+  const originalAppData = process.env.APPDATA;
+  const originalXdgConfigHome = process.env.XDG_CONFIG_HOME;
+  const tempHome = mkdtempSync(join(tmpdir(), 'commit-echo-home-'));
+
+  try {
+    process.env.HOME = tempHome;
+    process.env.APPDATA = join(tempHome, 'AppData', 'Roaming');
+    process.env.XDG_CONFIG_HOME = join(tempHome, '.config');
+    writeHistory(tempHome, ['fix: add retries', 'fix: Bring retries', 'fix: added retries']);
+
+    const profile = await buildProfile(10);
+
+    assert.equal(profile.totalCommits, 3);
+    assert.equal(profile.imperativeRate, 2 / 3);
   } finally {
     restoreEnv('HOME', originalHome);
     restoreEnv('APPDATA', originalAppData);