hatta

Untill حتـَّی 

حتـَّی  means "until" when it is followed by a verb in the past tense. When it is followed by a verb in the present tense it will express purpose and, therefore, means "in order to/so that." In that case, the verb should be in the subjunctive mood.

                                     (a)                 سَکنَ هنا حتـَّی حضرتْ عائلتـُهُ.

                                           (b)     إنتـَقـَلـَتْ إلی القاهرةِ حتـَّی تدرُسَ هَناكَ.