Because the Arabic script is an abjad (a writing system without vowels), an accurate transliteration into Cyrillic, an alphabet, would still require prior knowledge of the subject language to read.
Note: The following tables use the letter hamza (ء) as a carrier to illustrate the use of diacritics.
The absence of a hamza is occasionally recorded with a wasla sign (usually used only before the initial alif).
In certain positions, the sound - l - can be assimilated with the subsequent consonant (see more at Sun and moon letters).
Sometimes, for historical reasons, after the nunation, the silent letters alif-maksura or a simple alif are additionally written.