3 elements:
1. ا&ستثنى- what is excepted
                                2.  ا&ستثنى منه- what it is being excepted from
                                3. ستثناء- اداة ا- the particle of exception such as ،-إ
                                2 ماخ، ماعدا، غير،سوى
                                Terminology:
                                Munqati’: when istithna is NOT the same type as
                                mustathna minhu.
                                Muttasil: when istithna IS the same type as the
                                mustathna minhu.
                                Taam: when the istithna is complete and has a
                                mustathna minhu.
                                Mufarragh: when the istithna does not have a
                                mustathna minhu.
                                Mujab: a positive sentence
                                Ghair mujab: a negative/prohibitive/interrogative
                                sentence.
                                The mustathna after
Lesson 32   Rules of Istithna      -إ
                                                                                ٍ لكل
                                Istithna munqati’: always mansub  ا&وت-داء دوا ٌء ا
                                Istithna muttassil: if mujab then mansub eg
                                 َ
                                الشرك - الذنوب كلها اKيغفر ا
                                If muttassil but Ghair mujab
                                (negative/prohibitive/interrogative): Either mansub
                                or the same i’rab as the mustasthna minhu.
                                For mufarragh: it gets the I’rab it deserves and you
                                do this by omitting the - إand giving the i’rab that
                                would be given otherwise. E.g. ل2ب
                                                                 ٌ - ما رأيت ا- here if
                                you take out the - إit becomes clear that bilal is the
                                subject and would therefore be marfoo’.
                                The mustathna after  غيرand سوى
                                The mustathna after these words is majrur because
                                they have a mudaf/mudaf ilayh relationship.
                                The mustathna after  ما عداand 2 ماخis mansub.