In Nahw, there are two kinds of sentences:

1.  Jumlatul-ismiyyah

2.  Jumulatul-Fi`liyyah

But in Balagha, the two kinds of sentences are:

1.  A sentence that can be categorized as True or False.

2.  A sentence which cannot be categorized as True or False (questions, commands, or calling).

But there is a sub-category of #1.  A sentence which can be categorized as True or False is also categorized into either:

1.  Giving information or informing (فائدة الخبر), or

2.  Person A telling person B that Person A knows something that Person B already knows (لازم فائدة).  Basically, informing someone about something they already know, only to show that you know it.

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