أنهما

In a sentence

• قال الطالب أنهما كانا يعملان معًا.

  The student said that they (dual) were working together.

  In this sentence, "أنهما" is used as a conjunction to introduce an embedded clause, specifying that the two individuals (dual) mentioned are the subject of the verb "كانا."

• أعتقد أنهما قد نجحا في المشروع.

  I believe that they (dual) succeeded in the project.

  Here, "أنهما" serves to introduce the belief about the action performed by the two individuals in the dual form.

• يظهر أنهما يدرسان بجهد كبير.

  It appears that they (dual) are studying diligently.

  In this example, "أنهما" is used to note the subject (dual) of the appearing event linked to studying.