The masculine singular direct imperative from تَقُولُ is قُلْ, not a permanently used form such as “اُقْوُلْ.” Removal of the imperfect prefix, transfer of the weak radical’s vowel and loss of an unnecessary initial helping hamzah yield the shorter command.
Word / formMeaning / explanation
قُلْsay (one man).
قُولَاsay (two people).
قُولُواsay (male plural).
قُولِيsay (one woman).
Retention of the long wāw depends on the ending and whether consonantal sukūns would meet.