A Hundred and One Rules in Arabic Grammar!

83. The Nominalizer إنَّ & her Sisters ( لعلَّ ، أنَّ ، کأنَّ ، لکنَّ ، لأنَّ ) ===============================================================================

The Nominalizer إنَّ & her Sisters ( لعلَّ ، أنَّ ، کأنَّ ، لکنَّ ، لأنَّ ) change the subject nominative case marker to the accusative but they leave the predicate in its nominative case. By the way, أنَّ / إنَّ are called "Nominalizers" because they introduce nominal sentences.

In fact, the food is delicious.

My sister said that the food was delicious.

... but the food was delicious.

إنَّ   is only used in the initial position of a sentence, and following any form ofقالَ . Anywhere else you have to useأنَّ . Its meaning, therefore, changes from "indeed/in fact" to "that". Remember that all these particles should be followed by nouns or attached pronoun suffixes. Also notice that** إنَّ** and her sisters should be followed by the subject or its corresponding attached pronoun.