diff --git a/ext/bg/lang/deinflect.json b/ext/bg/lang/deinflect.json
index 914c9947..f51cd86f 100644
--- a/ext/bg/lang/deinflect.json
+++ b/ext/bg/lang/deinflect.json
@@ -257,6 +257,8 @@
         {"kanaIn": "わせる", "kanaOut": "う", "rulesIn": ["v1"], "rulesOut": ["v5"]},
         {"kanaIn": "させる", "kanaOut": "する", "rulesIn": ["v1"], "rulesOut": ["vs"]},
         {"kanaIn": "為せる", "kanaOut": "為る", "rulesIn": ["v1"], "rulesOut": ["vs"]},
+        {"kanaIn": "せさせる", "kanaOut": "する", "rulesIn": ["v1"], "rulesOut": ["vs"]},
+        {"kanaIn": "為させる", "kanaOut": "為る", "rulesIn": ["v1"], "rulesOut": ["vs"]},
         {"kanaIn": "こさせる", "kanaOut": "くる", "rulesIn": ["v1"], "rulesOut": ["vk"]},
         {"kanaIn": "来させる", "kanaOut": "来る", "rulesIn": ["v1"], "rulesOut": ["vk"]},
         {"kanaIn": "來させる", "kanaOut": "來る", "rulesIn": ["v1"], "rulesOut": ["vk"]}
@@ -496,6 +498,8 @@
     ],
     "potential or passive": [
         {"kanaIn": "られる", "kanaOut": "る", "rulesIn": ["v1"], "rulesOut": ["v1"]},
+        {"kanaIn": "せられる", "kanaOut": "する", "rulesIn": ["v1"], "rulesOut": ["vs"]},
+        {"kanaIn": "為られる", "kanaOut": "為る", "rulesIn": ["v1"], "rulesOut": ["vs"]},
         {"kanaIn": "こられる", "kanaOut": "くる", "rulesIn": ["v1"], "rulesOut": ["vk"]},
         {"kanaIn": "来られる", "kanaOut": "来る", "rulesIn": ["v1"], "rulesOut": ["vk"]},
         {"kanaIn": "來られる", "kanaOut": "來る", "rulesIn": ["v1"], "rulesOut": ["vk"]}
diff --git a/test/test-deinflector.js b/test/test-deinflector.js
index 2fee9fc3..5133b9f9 100644
--- a/test/test-deinflector.js
+++ b/test/test-deinflector.js
@@ -480,9 +480,10 @@ function testDeinflections() {
                 {term: '為る', source: '為た',           rule: 'vs', reasons: ['past']},
                 {term: '為る', source: '為ました',       rule: 'vs', reasons: ['polite past']},
                 {term: '為る', source: '為て',           rule: 'vs', reasons: ['-te']},
-                // ['potential']
+                {term: '為る', source: '為られる',       rule: 'vs', reasons: ['potential or passive']},
                 {term: '為る', source: '為れる',         rule: 'vs', reasons: ['passive']},
                 {term: '為る', source: '為せる',         rule: 'vs', reasons: ['causative']},
+                {term: '為る', source: '為させる',       rule: 'vs', reasons: ['causative']},
                 {term: '為る', source: '為せられる',     rule: 'vs', reasons: ['causative', 'potential or passive']},
                 {term: '為る', source: '為ろ',           rule: 'vs', reasons: ['imperative']},
                 {term: '為る', source: '為ない',         rule: 'vs', reasons: ['negative']},
@@ -521,9 +522,10 @@ function testDeinflections() {
                 {term: 'する', source: 'した',           rule: 'vs', reasons: ['past']},
                 {term: 'する', source: 'しました',       rule: 'vs', reasons: ['polite past']},
                 {term: 'する', source: 'して',           rule: 'vs', reasons: ['-te']},
-                // ['potential']
+                {term: 'する', source: 'せられる',       rule: 'vs', reasons: ['potential or passive']},
                 {term: 'する', source: 'される',         rule: 'vs', reasons: ['passive']},
                 {term: 'する', source: 'させる',         rule: 'vs', reasons: ['causative']},
+                {term: 'する', source: 'せさせる',       rule: 'vs', reasons: ['causative']},
                 {term: 'する', source: 'させられる',     rule: 'vs', reasons: ['causative', 'potential or passive']},
                 {term: 'する', source: 'しろ',           rule: 'vs', reasons: ['imperative']},
                 {term: 'する', source: 'しない',         rule: 'vs', reasons: ['negative']},