/** A regular expression matching legal single-letter word-final consonant forms. */
export declare const LEGAL_WORD_FINAL_1_CONSONANT_FORMS: RegExp;
/** A regular expression matching legal two-letter word-final consonant forms. */
export declare const LEGAL_WORD_FINAL_2_CONSONANT_FORMS: RegExp;
/** A regular expression matching legal three-letter word-final consonant forms. */
export declare const LEGAL_WORD_FINAL_3_CONSONANT_FORMS: RegExp;
/** A regular expression matching legal four-letter word-final consonant forms. */
export declare const LEGAL_WORD_FINAL_4_CONSONANT_FORMS: RegExp;
/**
 * Checks whether a consonant form is allowed in word-final position.
 *
 * @param consonantForm The consonant form to check.
 * @returns A boolean indicating whether the consonant form is a legal
 *   word-final consonant form.
 */
export declare function isLegalWordFinalConsonantForm(consonantForm: string): boolean;