Arabic root and pattern combinations

CaCaC-* CuCiC- ma-CC b;C- -sta-CCiC-

past active past passive passive participle 'to ask (someone) to…'

'writing' katab-tu

'I wrote' kutib-a

'it was written' makt b;b-un

'written' ya-staktib-u-(n b;)

'he asks (me) to write'

'reading' qaraʔ-tu

'I read' quriʔ-a

'it was read' maqr b;ʔ-un

'read' ya-staqriʔ-u-(n b;)

'he asks (me) to read'

*Each "C" represents a consonant within the root. Hyphens indicate affix attachment points.