As I understand: أنْ (an) is the أَنْ المصدرية and the verb with أَنْ can be replaced by a مصدر. أَنَ (anna) takes the subject of the coming clause in the accusative immediately after it (you don’t have an option). But what is إنَّ (inna)? And how do I know whether I should use أنْ, أنَّ or إنَّ? Do they all mean “that” in English?