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diff --git a/src/main/java/bjc/inflexion/InflectionAffixes.java b/src/main/java/bjc/inflexion/InflectionAffixes.java
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+++ b/src/main/java/bjc/inflexion/InflectionAffixes.java
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+/**
+ * (C) Copyright 2017 Benjamin Culkin.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package bjc.inflexion;
+
+import java.util.regex.Pattern;
+
+/**
+ * Utility methods for constructing inflection affixes.
+ * 
+ * @author EVE
+ *
+ */
+public class InflectionAffixes {
+	/*
+	 * Template for 'complete' affix patterns.
+	 * 
+	 * Match the start of the word, followed by zero or more word
+	 * characters, followed by the suffix, then the end of the string.
+	 * 
+	 * The word is in a capturing group named 'stem'.
+	 */
+	private static final String COMPLETE_PATT_FMT = "(?<stem>\\w*)%s$";
+
+	/*
+	 * Template for 'incomplete' affix patterns.
+	 * 
+	 * Match the start of the word, followed by one or more word characters,
+	 * followed by the suffix, then the end of the string.
+	 * 
+	 * The word is in a capturing group named 'stem'.
+	 */
+	private static final String INCOMPLETE_PATT_FMT = "(?<stem>\\w+)%s$";
+
+	/**
+	 * Create an affix that's a word by itself.
+	 * 
+	 * @param suffix
+	 *                The suffix to use.
+	 * 
+	 * @return A affix that represents the suffix.
+	 */
+	public static InflectionAffix complete(String suffix) {
+		Pattern patt = Pattern.compile(String.format(COMPLETE_PATT_FMT, suffix));
+
+		return new SimpleInflectionAffix("%s" + suffix, patt);
+	}
+
+	/**
+	 * Create an affix that's not a word by itself.
+	 * 
+	 * @param suffix
+	 *                The suffix to use.
+	 * 
+	 * @return An affix that represents the suffix.
+	 */
+	public static InflectionAffix incomplete(String suffix) {
+		Pattern patt = Pattern.compile(String.format(INCOMPLETE_PATT_FMT, suffix));
+
+		return new SimpleInflectionAffix("%s" + suffix, patt);
+	}
+}