to know · Sound root · Form I · ع ر ف · transitive
No weak letter. Only the present-stem vowel belongs to the word and has to be learned with it: كَتَبَ يَكْتُبُ, but فَتَحَ يَفْتَحُ and جَلَسَ يَجْلِسُ.
Impressum · Legal notice