absent

[arzgol]

He is afraid of talking to his professor, and he doesn't know how to inform him about he is going to be absent in the upcoming session.

Could you please fix my sentence.

Thank you so much for reply.

[Gillnetter]

He is afraid of talking to his professor, and he doesn't know how to inform tell him about that he is going to be absent in the upcoming session.

Could you please fix my sentence.

Thank you so much for reply.

Gil

You could also write something like this, "He is afraid of talking to his professor and he doesn't know how to inform him about the fact that he is going to be absent for the upcoming session."