Choose the Rule in Order

Mustathna: Excluding a Member

SituationGroup mentioned?Case after إِلَّاcomplete affirmativeyesmust be mansubcomplete non-affirmativeyesmansub, or follows the group's caseincomplete non-affirmativenofollows its own sentence role

First check whether the group is mentioned. Then check whether the clause is affirmative or non-affirmative (negative or interrogative). Only then decide the case.