Al-muqaddimah Al-ajurrumiyyah [on the Science of Arabic Grammar]
The Chapter on the MAṢDAR
[^70]
The Maṣdar is an Ism that is Manṣūb and comes third in the conjugation of the Fi‘l:
ضرب - يضرِب -ضَرْبا ً (hit - hits/will hit -hitting )
It is of two types: Lafđiyy and Ma‘nawiyy.
If its form (Lafđ) agrees with the form of its Fi‘l, then it is Lafđiyy, like:
قتلْتُهقََتْل اً (I killed hima killing i.e. I killed him definitely)
If it agrees with the meaning (Ma‘nā) of its Fi‘l, then it is Ma‘nawiyy[^71] , like:
جلستُقعوداً (I sata sitting i.e. I sat definitely)
قمتُ وقوفاً (I stooda standing i.e. I stood definitely)
and what is that are similar to that.