 Urdu doesn't have standalone vowel letters.Short vowels ("a", "i", "u") are represented by optional diacritics ("zabar", "zer", "pesh") upon the preceding consonant or a placeholder consonant ("alif", "ain", or "hamzah") if the syllable begins with the vowel, and long vowels by consonants "alif", "ain", "ye", and "wa'o" as matres lectionis, with disambiguating diacritics, some of which are optional ("zabar", "zer", "pesh"), whereas some are not ("madd", "hamzah").Urdu does not have short vowels at the end of words.